Remove unnecessary bashism.
Remove unnecessary bashism.

The run_tests.sh script uses /bin/sh, not bash.  From a cursory look, it
seems that this script uses a single bash-specific feature so drop it in
favor of the standard syntax.

--
MOS_MIGRATED_REVID=116243391

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