git(7): put the synopsis in a verse style paragraph

... so it wraps properly in small terminals.

Signed-off-by: Jonas Fonseca <fonseca@diku.dk>
Signed-off-by: Junio C Hamano <junkio@cox.net>

Documentation/git.txt

@@ -8,8 +8,9 @@ git - the stupid content tracker
 
 SYNOPSIS
 --------
+[verse]
 'git' [--version] [--exec-path[=GIT_EXEC_PATH]] [-p|--paginate]
-	[--bare] [--git-dir=GIT_DIR] [--help] COMMAND [ARGS]
+    [--bare] [--git-dir=GIT_DIR] [--help] COMMAND [ARGS]
 
 DESCRIPTION
 -----------