Commit Briefs
man: more Mercurial references changed to Git
Change-Id: I940a21d67b21b5dd139cb20b9fae9595506fc5ae
man/man1/0intro.1: update supported systems.
LGTM=rsc R=rsc https://codereview.appspot.com/71070050
install(1): cvs -> hg
R=rsc CC=codebot http://codereview.appspot.com/637041