Improve example of $TEST_SRCDIR in the documentation.
Improve example of $TEST_SRCDIR in the documentation.

--
MOS_MIGRATED_REVID=124356206

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