This changes "[user@]" to use {startsb} and {endsb} to insert [ and ],
similar to how {caret} is used in git-rev-parse.txt.
[jc: Removed a well-intentioned comment that broke the final
formatting from the original patch. While we are at it,
updated the paragraph that claims to be equivalent to the
section that was updated earlier without making matching
changes.]
Signed-off-by: Jonas Fonseca <fonseca@diku.dk>
Signed-off-by: Junio C Hamano <junkio@cox.net>