Set //third_party/py/six:srcs to public visibility. (#3378)
Set //third_party/py/six:srcs to public visibility. (#3378)

Close #3378.

Change-Id: I8ab58b00d5d8b86880c45f05feb139c01e0368aa

twitter-forks/bazel,dslomov/bazel,ulfjack/bazel,ButterflyNetwork/bazel,ButterflyNetwork/bazel,cushon/bazel,damienmg/bazel,aehlig/bazel,akira-baruah/bazel,perezd/bazel,aehlig/bazel,aehlig/bazel,ulfjack/bazel,werkt/bazel,twitter-forks/bazel,ulfjack/bazel,dropbox/bazel,variac/bazel,bazelbuild/bazel,spxtr/bazel,davidzchen/bazel,variac/bazel,damienmg/bazel,ButterflyNetwork/bazel,snnn/bazel,davidzchen/bazel,variac/bazel,dslomov/bazel,snnn/bazel,twitter-forks/bazel,safarmer/bazel,dslomov/bazel,ulfjack/bazel,cushon/bazel,meteorcloudy/bazel,aehlig/bazel,snnn/bazel,safarmer/bazel,variac/bazel,werkt/bazel,davidzchen/bazel,snnn/bazel,damienmg/bazel,spxtr/bazel,perezd/bazel,cushon/bazel,katre/bazel,perezd/bazel,damienmg/bazel,dslomov/bazel-windows,variac/bazel,akira-baruah/bazel,snnn/bazel,akira-baruah/bazel,dropbox/bazel,ulfjack/bazel,dropbox/bazel,dslomov/bazel,safarmer/bazel,dslomov/bazel-windows,dslomov/bazel-windows,spxtr/bazel,werkt/bazel,ButterflyNetwork/bazel,dslomov/bazel,akira-baruah/bazel,variac/bazel,davidzchen/bazel,cushon/bazel,ulfjack/bazel,dslomov/bazel,meteorcloudy/bazel,dslomov/bazel-windows,katre/bazel,twitter-forks/bazel,aehlig/bazel,bazelbuild/bazel,perezd/bazel,safarmer/bazel,spxtr/bazel,ButterflyNetwork/bazel,spxtr/bazel,cushon/bazel,meteorcloudy/bazel,bazelbuild/bazel,werkt/bazel,meteorcloudy/bazel,davidzchen/bazel,katre/bazel,bazelbuild/bazel,snnn/bazel,spxtr/bazel,perezd/bazel,aehlig/bazel,snnn/bazel,akira-baruah/bazel,perezd/bazel,dslomov/bazel,davidzchen/bazel,dropbox/bazel,damienmg/bazel,dslomov/bazel-windows,perezd/bazel,dropbox/bazel,damienmg/bazel,safarmer/bazel,twitter-forks/bazel,ButterflyNetwork/bazel,aehlig/bazel,dslomov/bazel-windows,meteorcloudy/bazel,twitter-forks/bazel,twitter-forks/bazel,davidzchen/bazel,spxtr/bazel,bazelbuild/bazel,variac/bazel,safarmer/bazel,werkt/bazel,ulfjack/bazel,damienmg/bazel,meteorcloudy/bazel,katre/bazel,katre/bazel,bazelbuild/bazel,werkt/bazel,akira-baruah/bazel,dropbox/bazel,cushon/bazel,meteorcloudy/bazel,katre/bazel