Johnny Chen 8f8a2a7774 Add a '-u ENV_VAR_NAME' option to the test driver, whose purpose is to unset the said
environment variable before starting the test runner which executes the test cases and
may spawn child processes.  An example:

    ./dotest.py -u MY_ENV1 -u MY_ENV2 -v -p TestWatchLocationWithWatchSet.py

llvm-svn: 149304
2012-01-31 00:38:03 +00:00
2012-01-30 22:46:22 +00:00
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