[PATCH] hold_index_file_for_update should not unlink failed to open .lock files atexit
[PATCH] hold_index_file_for_update should not unlink failed to open .lock files atexit

Set up atexit only if the .lock-file was opened successfully.

Signed-off-by: Alex Riesen <053ce55f4869b7f450d1d77b8f162c6f2bb9e137@gmail.com>
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