man pages: fix duplicate words

sys/man/1/cb

@@ -17,7 +17,7 @@ cb \- C program beautifier
 .SH DESCRIPTION
 .I Cb
 reads syntactically correct C programs from
-from its input or the given files, and writes them to its stdout
+its input or the given files, and writes them to its stdout
 with a more visually pleasing spacing and indentation.
 .I Cb
 understands no C++ syntax bar newline-terminated comments;

sys/man/1/hg

@@ -1366,7 +1366,7 @@ from the current one.
 .RS 4
 .nf
 By default, push will refuse to run if it detects the result would
-increase the number of remote heads. This generally indicates the
+increase the number of remote heads. This generally indicates
 the client has forgotten to pull and merge before pushing.
 .fi
 .RE

sys/man/1/python

@@ -197,7 +197,7 @@ to print a warning each time it occurs (this may generate many
 messages if a warning is triggered repeatedly for the same source
 line, such as inside a loop);
 .B module
-to print each warning only only the first time it occurs in each
+to print each warning only the first time it occurs in each
 module;
 .B once
 to print each warning only the first time it occurs in the program; or

sys/man/1/torrent

@@ -35,7 +35,7 @@ that are then downloaded by clients in random order.
 As soon as a client completes a piece, it makes the piece 
 available for others to download.
 .PP
-To find find other clients (peers), a tracker-server is
+To find other clients (peers), a tracker-server is
 contacted.
 .PP
 Before files can be transmitted, a torrent-file needs

sys/man/2/aml

@@ -196,7 +196,7 @@ Objects stay valid as long as they are reachable from
 .IR amlroot .
 .bp
 .PP
-The aml library can be linked into userspace programs and
+The aml library can be linked into userspace programs
 and the kernel which have different means of hardware access
 and memory constraints.
 .PP

sys/man/2/malloc

@@ -198,7 +198,7 @@ the call
 .B poolcheck(mainmem)
 can be used to scan the storage arena for inconsistencies
 such as data written beyond the bounds of allocated blocks.
-It is often useful to combine this with with setting
+It is often useful to combine this with setting
 .EX
     mainmem->flags |= POOL_NOREUSE;
 .EE

sys/man/2/memlayer

@@ -219,7 +219,7 @@ within the window, using the backing store or appropriate refresh method.
 .I Memlhide
 goes the other way, backing up
 .I r
-so that that portion of the screen may be modified without losing the data in this window.
+so that portion of the screen may be modified without losing the data in this window.
 .PP
 .I Memltofront
 pulls

sys/man/2/open

@@ -103,7 +103,7 @@ cannot be evaluated, if the user doesn't have write permission
 in the final directory, if the file already exists and
 does not permit the access defined by
 .IR omode ,
-of if there there are no free file descriptors.
+of if there are no free file descriptors.
 In the last case, the file may be created even when
 an error is returned.
 If the file is new and the directory in which it is created is

sys/man/3/flash

@@ -78,7 +78,7 @@ can be read and written.
 A read returns several lines containing decimal and hexadecimal numbers
 (separated by white space)
 revealing the characteristics of memory within the partition.
-The first line gives the 
+The first line gives
 the manufacturer ID,  the flash device ID, the memory width in bytes,
 and a string giving the flash type
 (currently either

sys/man/4/wikifs

@@ -166,7 +166,7 @@ Finally, the
 file (with associated lock
 .BR L.map )
 provides a mapping from
-sequence numbers to
+sequence numbers
 to page titles.
 Each map line is a decimal
 .IR n ,

sys/man/8/gpsfs

@@ -192,7 +192,7 @@ service is posted in
 .PP
 The
 .B \-m
-flag specifies a mount mount other than
+flag specifies a mount other than
 .BR /mnt .
 .SS Evermore
 .B Aux/gpsevermore

sys/man/8/pop3

@@ -44,7 +44,7 @@ create
 and write debugging output to it
 .TP
 .B -a
-causes pop3 to assume that it it already authenticated
+causes pop3 to assume that it already authenticated
 and to read
 .I mailbox
 immediately