git-fetch: fix --keep vs --thin
git-fetch: fix --keep vs --thin

When --keep is specified there is no reason to pass --thin to git-fetch-pack,
which are mutually exclusive.  This does not hurt because fetch-pack disables
thin transfer when both are given internally, but still is confusing.

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