applymbox: typofix to enable -m option.
applymbox: typofix to enable -m option.

The -m option to fall back on 3-way merge was not honoured at
all because of a typo.

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