Revert 'Fix a typo 'iff' => 'if''. iff is an abreviation of if and only if. See: http://en.wikipedia.org/wiki/If_and_only_if Commit 164767

llvm-svn: 164768
diff --git a/llvm/utils/unittest/googletest/gtest-death-test.cc b/llvm/utils/unittest/googletest/gtest-death-test.cc
index 3641ca5..bf7e32c 100644
--- a/llvm/utils/unittest/googletest/gtest-death-test.cc
+++ b/llvm/utils/unittest/googletest/gtest-death-test.cc
@@ -484,7 +484,7 @@
 //   status_ok: true if exit_status is acceptable in the context of
 //              this particular death test, which fails if it is false
 //
-// Returns true if all of the above conditions are met.  Otherwise, the
+// Returns true iff all of the above conditions are met.  Otherwise, the
 // first failing condition, in the order given above, is the one that is
 // reported. Also sets the last death test message string.
 bool DeathTestImpl::Passed(bool status_ok) {