	Correct the regexp for finding unix signal names.   For example, earlier, the regexp would accept SIGQUEUE_MAX   as a unix signal with name SIGQUEUE. Now it is ignored.
	Correct the regexp for finding unix signal names.
  For example, earlier, the regexp would accept SIGQUEUE_MAX
  as a unix signal with name SIGQUEUE. Now it is ignored.

R=iant
CC=golang-dev, golang-nuts, joel.sherrill
http://codereview.appspot.com/1452041

Committer: Ian Lance Taylor <87e9c6d529889242b7e184afb632328636553ab4@golang.org>

wesolows/golang,firebitsbr/golang-old,firebitsbr/golang-old,wesolows/golang,wesolows/golang-old,wesolows/golang-old,wesolows/golang,firebitsbr/golang-old,wesolows/golang,wesolows/golang,firebitsbr/golang-old,firebitsbr/golang-old,wesolows/golang-old,wesolows/golang,wesolows/golang-old,firebitsbr/golang-old,wesolows/golang,firebitsbr/golang-old,wesolows/golang-old,firebitsbr/golang-old,wesolows/golang-old,wesolows/golang-old