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>