Chandler Carruth f95422a37c [x86] Teach the test update script to strip trailing whitespace.
This is done in a bit of a strange way to use a multiline RE instead of
looping over the lines. Suggestions welcome here for a more pythonic way
of doing this as long as its reasonably fast.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228131 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-04 10:46:48 +00:00
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