pickaxe tests: add missing test for --no-pickaxe-regex being an error
Add a missing test for --no-pickaxe-regex. This has been an error ever since before the -S or -G options were added, or since 7ae0b0cb65f (git-log (internal): more options., 2006-03-01). The reason for adding this test is that Junio suggested in [1] in response to a later test addition in this series that it might be good to support --no-pickaxe-regex in combination with -G. This would allow for fixed-string searching with -G, similr to grep's --fixed-strings mode. I agree that that would make sense if anyone would like to implement it, but since it dies right now let's first add this test to assert the existing long-standing behavior. We can always add support for --[no-]pickaxe-regex in combination with -G at some later date. 1. http://lore.kernel.org/git/xmqqwnto9pt7.fsf@gitster.g Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>