distproto: remove .hgnore and .hg and add .git directory

.hgignore

@@ -1,16 +0,0 @@
-syntax: regexp
-^(386|68000|68020|alpha|amd64|arm|arm64|mips|power|power64|sparc|sparc64|spim)/(bin|lib|init|mbr|pbs|boot[^/]+|s?9[^/]+)(/|$)
-^(acme|sys/src)/(.*/)?[0125678vqki]\..*$
-^(acme|sys/src)/.*\.[ao]?[0125678vqki]?$
-^(dev|fd|net.*|srv|shr|env|root|proc|boot|mnt|n|bin|usr|cfg|cron|mail|tmp)(/|$)
-^acme/bin/(386|68000|68020|alpha|amd64|arm|arm64|mips|power|power64|sparc|sparc64|spim)(/|$)
-^adm/(cache|keys|netkeys|secstore|users|whois|timezone/local)(/|$)
-^lib/(ndb|audio|firmware)(/|$)
-^lib/rfc/(drafts|index|rfc.*)(/|$)
-^sys/doc/.*\.(html|ps|pdf|png|out)$
-^sys/lib/(pkg|lp/log|man/lookman/index)(/|$)
-^sys/lib/python/.*\.(pyo|pyc|exe)$
-^sys/log(/|$)
-^sys/man/(searchindex|[1-9]/INDEX.*)$
-^sys/src/.*\.(bits|debug|output|tab\.[hc])$
-^sys/src/pkg(/|$)

sys/lib/sysconfig/proto/distproto

@@ -434,6 +434,5 @@ usr	d775
 dist	d775
 	plan9front	d775
 		uid=glenda
-		.hgignore	664
-		.hg		d775
+		.git		d775
 			+