Fix *l/*c -V flag segfault
Fix *l/*c -V flag segfault

*l/*c -V will segfault on macos without this trivial fix.

R=adg
CC=golang-dev
http://codereview.appspot.com/205042

Committer: Andrew Gerrand <395a7d33bec8475c9b83b7d440f141bcbd994aa5@golang.org>

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