BSD grep (on macOS) doesn't like repeated repetition operators, it
throws the error
grep: repetition-operator operand invalid
This removes the superfluous repetition operator to make the commit-msg
hook work on macOS and other platforms not using GNU grep.
Change-Id: Id0f57d0f14634f7844b889d71342b2982fcadeb2
Signed-off-by: Patrick Elsen <pelsen@xfbs.net>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38205
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>