gitconfig: Match the Change-Id line more exactly

Change-Id: I5ac267770bc5b43dd1435e75ab0fcbde0d88b664
Signed-off-by: Zheng Bao <zheng.bao@amd.com>
Signed-off-by: Zheng Bao <fishbaozi@gmail.com>
Reviewed-on: http://review.coreboot.org/1487
Reviewed-by: Anton Kochkov <anton.kochkov@gmail.com>
Tested-by: build bot (Jenkins)
1 file changed