man page fixes (thanks stuart morrow)

sys/man/1/deroff

@@ -83,11 +83,11 @@ but remove lists as well.
 .IR spell (1)
 .SH BUGS
 This filter is not a complete interpreter of
-.I troff .
+.IR troff .
 For example, macro definitions containing
 .L \e$
 cause chaos in
-.IR deroff
+.I deroff
 when the popular
 .L $$
 delimiters for

sys/man/1/leak

@@ -158,7 +158,7 @@ The list is sorted by count in decreasing order.
 .I Umem
 prints summarizes all allocations, not just 
 memory leaks, but it is faster and requires less memory than 
-.I leak .
+.IR leak .
 .PP
 .I Kmem
 is like

sys/man/1/uhtml

@@ -12,31 +12,31 @@ uhtml \- convert foreign character set HTML file to unicode
 .I file
 ]
 .SH DESCRIPTION
-HTML comes in various character set encodings
+HTML comes in various character-set encodings
 and has special forms to encode characters. To
-make it easier to process html, uhtml is used
-to normalize it to a unicode only form.
+make it easier to process HTML, uhtml is used
+to normalize it to a Unicode-only form.
 .LP
-Uhtml detects the character set of the html input
+Uhtml detects the character set of the HTML input
 .I file
 and calls
 .IR tcs (1)
-to convert it to utf replacing html-entity forms
-by ther unicode character representations except for 
-.B lt
-.B gt
-.B amp
-.B quot
+to convert it to UTF replacing HTML-entity forms
+by their Unicode character representations except for 
+.BR lt ,
+.BR gt ,
+.BR amp ,
+.BR quot ,
 and
-.B apos .
-The converted html is written to
+.BR apos .
+The converted HTML is written to
 standard output. If no
 .I file
 was given, it is read from standard input. If the
 .B -p
 option is given, the detected character set is printed and
 the program exits without conversion.
-In case character set detection fails, the default (utf)
+In case character-set detection fails, the default (UTF)
 is assumed. This default can be changed with the
 .B -c
 option.

sys/man/1/vac

@@ -82,7 +82,7 @@ the files under an extra two levels of directory hierarchy named
 .I yyyy/mmdd
 (year, month, day)
 in the style of the dump file system
-(see Plan 9's \fIfs\fR(4)).
+(see \fIfs\fR(4)).
 If
 .I vacfile
 already exists, an additional backup day is added to the
@@ -184,7 +184,7 @@ All other lines should be of the form
 .I pattern
 or
 .B exclude
-.I pattern .
+.IR pattern .
 When considering whether to include a directory or file
 in the vac archive,
 the earliest matching pattern in the file

sys/man/2/9p

@@ -511,7 +511,7 @@ prone to error, the helper routine
 will handle the request given pointers to two functions
 .I walk1
 and (optionally)
-.I clone .
+.IR clone .
 .IR Clone ,
 if non-nil, is called to signal the creation of
 .I newfid
@@ -881,7 +881,7 @@ option to increment
 .IR nntpfs (4),
 .IR snap (4),
 and
-.B /sys/src/lib9p/ramfs.c
+.B /sys/src/cmd/ramfs.c
 are good examples of simple single-threaded file servers.
 .PP
 In general, the

sys/man/2/ioproc

@@ -92,7 +92,7 @@ to clear a pending interrupt.
 .PP
 .I Closeioproc
 terminates the I/O proc and frees the associated
-.B Ioproc .
+.BR Ioproc .
 .PP
 .I Iocall
 is a primitive that may be used to implement

sys/man/2/ip

@@ -97,7 +97,7 @@ uchar	v4prefix[IPaddrlen];
 .SH DESCRIPTION
 These routines are used by Internet Protocol (IP) programs to
 manipulate IP and Ethernet addresses.
-Plan 9, by default, uses V6 format IP addresses.  Since V4
+Plan 9, by default, uses V6-format IP addresses.  Since V4
 addresses fit into the V6 space, all IP addresses can be represented.
 IP addresses are stored as a string of 16
 .B unsigned
@@ -222,7 +222,7 @@ operates on v6 addresses.
 .PP
 .I Defmask
 returns the standard class A, B, or C mask for
-.I ipaddr .
+.IR ipaddr .
 .PP
 .I Isv4
 returns non-zero if the V6 address is in the V4 space, that is,

sys/man/2/pushtls

@@ -78,10 +78,10 @@ returns a file descriptor for the TLS data channel.  Anything written to this
 descriptor will get encrypted and authenticated and then written to the
 file descriptor,
 .IR fd .
-.I Pushtls ,
-.IR tlsClient
+.IR Pushtls ,
+.I tlsClient
 and
-.IR tlsServer
+.I tlsServer
 close the original file descriptor on success.
 If
 .I dir

sys/man/2/venti-cache

@@ -126,7 +126,7 @@ and
 with room for
 .I nblocks
 of maximum block size
-.I blocksize .
+.IR blocksize .
 .PP
 .I Vtcachefree
 frees a cache and all the associated blocks.

sys/man/2/venti-log

@@ -54,7 +54,7 @@ The logs are named by UTF strings.
 .PP
 .I Vtlogopen
 returns a reference to the log with the given
-.I name .
+.IR name .
 If a log with that name does not exist and
 .I size 
 is non-zero,

sys/man/3/cmd

@@ -61,7 +61,7 @@ accepts the following textual commands, allowing quoting as interpreted by
 Run the host command in directory
 .IR wdir ,
 which is a directory
-.I "on the host system" .
+.IR "on the host system" .
 Issue this request before starting the command.
 By default, commands are run in the Inferno root directory on the host system.
 .TP

sys/man/3/usb

@@ -19,7 +19,7 @@ usb \- USB Host Controller Interface
 .SH DESCRIPTION
 The Universal Serial Bus is a complex yet popular bus
 for connecting all kind of devices to a computer.
-It is a four-wire tree-shaped bus that provides both communication and (limited)
+It is a tree-shaped bus that provides both communication and (limited)
 power to devices.
 Branching points in the tree are provided by devices called
 .IR hubs .
@@ -41,7 +41,6 @@ UHCI and OHCI for USB 1 (up to 12 Mb/s),
 EHCI for USB 2 (up to 480 Mb/s)
 and
 XHCI for USB 3 (up to 5 Gb/s).
-We currently support all but XHCI, which is still quite new.
 .PP
 The USB bus is fully controlled by the host; all devices are polled.
 Hubs are passive in the sense that they do not poll the devices attached
@@ -57,7 +56,7 @@ for particular classes of devices (such as mice, keyboards, or audio devices).
 Specialization continues as subclasses and subsubclasses are explored.
 .PP
 Enumeration of the bus and initial configuration of devices is done
-by a user level program,
+by a user-level program,
 .IR usbd .
 Device drivers are implemented by separate user programs, although
 some of them may be statically linked into
@@ -179,7 +178,7 @@ in
 to resume I/O.
 The most common error is
 .L crc/timeout
-indicating problems in communication with the device (eg., a physical
+indicating problems in communication with the device (e.g., a physical
 detach of the device or a wiring problem).
 .PP
 For control and isochronous transfers, there is an implicit
@@ -267,9 +266,11 @@ Speed
 (1.5 Mb/s),
 .BR full
 (12 Mb/s),
-or
 .BR high
-(480 Mb/s).
+(480 Mb/s)
+or
+.BR super
+(5 Gb/s).
 .TP
 Maximum packet size
 Used when performing I/O on the data file.
@@ -426,7 +427,7 @@ state.
 .TP
 .BI name " str"
 Generates an additional file name,
-.I str ,
+.IR str ,
 for the
 .B data
 file of the endpoint.
@@ -484,16 +485,16 @@ or
 .BR rw ,
 which creates, respectively, an input, output, or input/output endpoint.
 .TP
-.B "speed {low|full|high}
-Set the endpoint speed to full, low, or high, respectively.
+.B "speed {low|full|high|super}
+Set the endpoint speed to full, low, high, or SuperSpeed, respectively.
 .TP
 .B hub
 Tell this driver that the endpoint corresponds to a hub device.
 .PD
 .PP
-Setup endpoints for hub devices also accept his request:
+Setup endpoints for hub devices also accept
 .TP
-.B "newdev {low|full|high} \fIport\fP
+.B "newdev {low|full|high|super} \fIport\fP
 Create a new setup endpoint to represent a new device.
 The first argument is the device speed.
 .I Port

sys/man/4/cdfs

@@ -203,7 +203,7 @@ The
 option will print rc commands using
 .IR audio/flacenc (1)
 to encode and tag audio tracks from the disc to output directory
-.I dir .
+.IR dir .
 .SH EXAMPLES
 Backup to a BD-R disc:
 .br

sys/man/4/nusb

@@ -88,7 +88,7 @@ attachment. It provides a filesystem with the file
 .B usbevent
 (usually seen as
 .BR /dev/usbevent )
-which, when read, returns a 6 column, space separated line of
+which, when read, returns a 6-column, space-separated line of
 text, one for each event. The columns are:
 .B attach
 or
@@ -99,7 +99,7 @@ followed by
 .I did
 .I csp
 and
-.I hname .
+.IR hname .
 The
 .I addr
 is the decimal device address assigned.
@@ -111,9 +111,9 @@ are formatted as 4 digit hexadecimal.
 is the device class, subclass, protocol indentifier
 formatted as 6 digit hexadecimal.
 .I Usbd
-assigns a stable device unique name based on the
+assigns a stable device identifier based on the
 device descriptor for
-.I hname .
+.IR hname .
 This information is read by
 .IR nusbrc (8)
 and the
@@ -142,7 +142,7 @@ provides a file system (usually seen under
 .BR /dev )
 that includes one directory per storage device, named
 .BI sdU N [. M ]
-in correspondence with the usb device unique name
+in correspondence with the USB device identifier
 and the storage unit number (or LUN). The LUN is omited
 for single lun devices.
 .PP
@@ -160,7 +160,7 @@ file supplies the device geometry and partitions when read.
 .SS Ethernet
 .I Ether
 handles USB ethernet devices. The file system provided is
-compatible to
+compatible with
 .IR ether (3)
 and added to the share
 .B usbnet
@@ -232,9 +232,9 @@ and
 .SS Audio devices
 .I Audio
 configures and manages a USB audio device.
-It implements a file system, (normally seen under
-.BI /dev )
-compatible to
+It implements a file system (normally seen under
+.BR /dev ),
+compatible with
 .IR audio (3).
 .SH SOURCE
 .B /sys/src/cmd/nusb

sys/man/4/rio

@@ -225,7 +225,7 @@ When written to,
 .B wctl
 accepts messages to change the size or placement of the associated window,
 and to create new windows.
-The messages are in a command-line like format, with a command name,
+The messages are in a command-line-like format, with a command name,
 possibly followed by options introduced by a minus sign.
 The options must be separated by blanks, for example
 .B -dx 100
@@ -276,14 +276,14 @@ and
 .B new
 commands accept
 .B -minx
-.IR n ,
+.RI [±] n ,
 .B -miny
-.IR n ,
+.RI [±] n ,
 .B -maxx
-.IR n ,
+.RI [±] n ,
 and
-.BR -maxy
-.I n
+.B -maxy
+.RI [±] n
 options to set the position of the corresponding edge of the window.
 They also accept an option
 .B -r

sys/man/6/authsrv

@@ -283,7 +283,7 @@ The server replies with its own authenticator,
 proving to the client that it also knows
 .I Kn
 and therefore 
-.I Ks .
+.IR Ks .
 .PP
 The 64-bit shared secret
 .I Kn

sys/man/8/ndb

@@ -764,7 +764,7 @@ option enables caching which is handy for debugging the dns code.
 .PP
 .I Ndb/dnsgetip
 resolves and prints A and AAAA records without consulting
-.I ndb/dns .
+.IR ndb/dns .
 By default,
 .I ndb/dnsgetip
 queries A records first and then AAAA records. As with

sys/man/8/venti-backup

@@ -66,7 +66,7 @@ option specifies that the arena starts at byte
 (default
 .BR 0 )
 in
-.I arenafile .
+.IR arenafile .
 This is useful for reading directly from
 the Venti arena partition:
 .IP