Avoid running 'svn up' to a previous revision if we know the
revision we just committed is the first descendant of the
revision we came from.
This reduces the time to do a series of commits by about 25%.
Signed-off-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>
e17512f3de