	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>

h8liu/golang,h8liu/golang,nightlyone/golang,tv42/old-go,tv42/old-go,ssrl/go,h8liu/golang,nightlyone/golang,apparentlymart/golang,tv42/old-go,pombredanne/go-deleteme,tianon/debian-golang,tv42/old-go,bdwalton/debian-golang,nightlyone/golang,ssrl/go,apparentlymart/golang,tianon/debian-golang,gnanderson/go,ssrl/go,ssrl/go,tianon/debian-golang,gnanderson/go,pombredanne/go-deleteme,bdwalton/debian-golang,tianon/debian-golang,gnanderson/go,dsriram/golang,gnanderson/go,h8liu/golang,h8liu/golang,dsriram/golang,dsriram/golang,tianon/debian-golang,apparentlymart/golang,dsriram/golang,dsriram/golang,nightlyone/golang,tianon/debian-golang,apparentlymart/golang,gnanderson/go,tianon/debian-golang,nightlyone/golang,pombredanne/go-deleteme,h8liu/golang,bdwalton/debian-golang,ssrl/go,pombredanne/go-deleteme,bdwalton/debian-golang,apparentlymart/golang,bdwalton/debian-golang,pombredanne/go-deleteme,nightlyone/golang,tv42/old-go,tv42/old-go,tianon/debian-golang,pombredanne/go-deleteme,dsriram/golang,tv42/old-go,ssrl/go,bdwalton/debian-golang,apparentlymart/golang,nightlyone/golang,apparentlymart/golang,pombredanne/go-deleteme,ssrl/go,gnanderson/go,h8liu/golang,gnanderson/go,dsriram/golang,bdwalton/debian-golang,bdwalton/debian-golang