git-svn: respect lower bound of -r/--revision when following parent
git-svn: respect lower bound of -r/--revision when following parent

When an explicit --revision argument is specified, do not fetch
past the specified range into the beginning of history.

Signed-off-by: Eric Wong <8c2951295f8292b0c03727bc4652981172298eae@yhbt.net>
Signed-off-by: Junio C Hamano <dc50d1021234060e53ec42a77d526afa2fe07479@cox.net>

destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git