Only run `bazel help` if the user isn't root
Only run `bazel help` if the user isn't root

Fixes #739.

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MOS_MIGRATED_REVID=116257685

kchodorow/bazel-1,bazelbuild/bazel,variac/bazel,UrbanCompass/bazel,mikelalcon/bazel,snnn/bazel,juhalindfors/bazel-patches,aehlig/bazel,spxtr/bazel,spxtr/bazel,zhexuany/bazel,davidzchen/bazel,hermione521/bazel,twitter-forks/bazel,anupcshan/bazel,anupcshan/bazel,mbrukman/bazel,kchodorow/bazel,mikelikespie/bazel,zhexuany/bazel,damienmg/bazel,dropbox/bazel,ulfjack/bazel,damienmg/bazel,perezd/bazel,mikelikespie/bazel,spxtr/bazel,safarmer/bazel,mikelikespie/bazel,dslomov/bazel,akira-baruah/bazel,dslomov/bazel-windows,cushon/bazel,Asana/bazel,anupcshan/bazel,werkt/bazel,twitter-forks/bazel,bazelbuild/bazel,ulfjack/bazel,dslomov/bazel-windows,variac/bazel,safarmer/bazel,cushon/bazel,UrbanCompass/bazel,juhalindfors/bazel-patches,werkt/bazel,zhexuany/bazel,iamthearm/bazel,davidzchen/bazel,Asana/bazel,werkt/bazel,snnn/bazel,aehlig/bazel,ulfjack/bazel,akira-baruah/bazel,ButterflyNetwork/bazel,katre/bazel,bazelbuild/bazel,hermione521/bazel,abergmeier-dsfishlabs/bazel,davidzchen/bazel,kchodorow/bazel,dropbox/bazel,snnn/bazel,aehlig/bazel,Asana/bazel,snnn/bazel,snnn/bazel,iamthearm/bazel,mbrukman/bazel,aehlig/bazel,akira-baruah/bazel,werkt/bazel,kchodorow/bazel,dropbox/bazel,dropbox/bazel,damienmg/bazel,snnn/bazel,ulfjack/bazel,Asana/bazel,juhalindfors/bazel-patches,meteorcloudy/bazel,meteorcloudy/bazel,UrbanCompass/bazel,meteorcloudy/bazel,dslomov/bazel-windows,ulfjack/bazel,mikelalcon/bazel,dslomov/bazel,mrdomino/bazel,spxtr/bazel,twitter-forks/bazel,UrbanCompass/bazel,LuminateWireless/bazel,cushon/bazel,meteorcloudy/bazel,twitter-forks/bazel,whuwxl/bazel,abergmeier-dsfishlabs/bazel,twitter-forks/bazel,perezd/bazel,dslomov/bazel,LuminateWireless/bazel,ulfjack/bazel,hermione521/bazel,ButterflyNetwork/bazel,meteorcloudy/bazel,twitter-forks/bazel,LuminateWireless/bazel,mbrukman/bazel,kchodorow/bazel,whuwxl/bazel,dslomov/bazel-windows,dslomov/bazel,bazelbuild/bazel,werkt/bazel,ButterflyNetwork/bazel,hermione521/bazel,Asana/bazel,zhexuany/bazel,mrdomino/bazel,akira-baruah/bazel,katre/bazel,variac/bazel,ButterflyNetwork/bazel,dslomov/bazel-windows,anupcshan/bazel,mrdomino/bazel,damienmg/bazel,katre/bazel,iamthearm/bazel,hermione521/bazel,mikelalcon/bazel,mikelalcon/bazel,meteorcloudy/bazel,LuminateWireless/bazel,anupcshan/bazel,Asana/bazel,cushon/bazel,Asana/bazel,davidzchen/bazel,dropbox/bazel,dropbox/bazel,dslomov/bazel,kchodorow/bazel,mikelalcon/bazel,damienmg/bazel,katre/bazel,ButterflyNetwork/bazel,kchodorow/bazel-1,safarmer/bazel,UrbanCompass/bazel,whuwxl/bazel,abergmeier-dsfishlabs/bazel,safarmer/bazel,spxtr/bazel,iamthearm/bazel,bazelbuild/bazel,LuminateWireless/bazel,abergmeier-dsfishlabs/bazel,whuwxl/bazel,mrdomino/bazel,dslomov/bazel,bazelbuild/bazel,abergmeier-dsfishlabs/bazel,dslomov/bazel,abergmeier-dsfishlabs/bazel,werkt/bazel,kchodorow/bazel,juhalindfors/bazel-patches,perezd/bazel,mrdomino/bazel,spxtr/bazel,variac/bazel,akira-baruah/bazel,akira-baruah/bazel,variac/bazel,perezd/bazel,anupcshan/bazel,variac/bazel,spxtr/bazel,iamthearm/bazel,iamthearm/bazel,mikelalcon/bazel,damienmg/bazel,kchodorow/bazel-1,kchodorow/bazel-1,cushon/bazel,aehlig/bazel,dslomov/bazel-windows,davidzchen/bazel,ButterflyNetwork/bazel,perezd/bazel,damienmg/bazel,meteorcloudy/bazel,snnn/bazel,katre/bazel,whuwxl/bazel,mikelikespie/bazel,katre/bazel,juhalindfors/bazel-patches,hermione521/bazel,mbrukman/bazel,aehlig/bazel,kchodorow/bazel-1,ulfjack/bazel,aehlig/bazel,mbrukman/bazel,safarmer/bazel,davidzchen/bazel,kchodorow/bazel-1,zhexuany/bazel,zhexuany/bazel,cushon/bazel,variac/bazel,twitter-forks/bazel,mrdomino/bazel,LuminateWireless/bazel,safarmer/bazel,perezd/bazel,mbrukman/bazel,davidzchen/bazel,UrbanCompass/bazel,juhalindfors/bazel-patches,kchodorow/bazel,juhalindfors/bazel-patches,mikelikespie/bazel,mikelikespie/bazel,perezd/bazel,whuwxl/bazel