Made some minor tweaks to __cxa_rethrow

git-svn-id: https://llvm.org/svn/llvm-project/libcxxabi/trunk@146396 91177308-0d34-0410-b5e6-96231b3b80d8
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index dbc8fcb..8d7a127 100644
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@@ -227,9 +227,9 @@
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