Jens Lehmann authored Jun 15, 2014 and Junio C Hamano committed Jul 14, 2014

Test that the am command updates the work tree as expected (for submodule
changes which don't result in conflicts). To make that work add two
helper functions that use format-patch to create the input for am.

Add the KNOWN_FAILURE_NOFF_MERGE_ATTEMPTS_TO_MERGE_REMOVED_SUBMODULE_FILES
switch to expect the known failure that --no-ff merges attempt to merge
the new files in the former submodule directory with those of the removed
submodule.

Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>