mozilla/rust — pull request #6950 by artagnon (2013-06-05 13:42:34+00:00)
Title: Makefile.in: simplify logic for CFG_VER_HASH

git log -1 --pretty=format:'%H' is a very convoluted way of saying git
rev-parse HEAD.

Signed-off-by: Ramkumar Ramachandra