David Blaikie 119b9304a9 llvm-dwp: Streamline duplicate DWO ID diagnostic handling
Actually use the error return path rather than printing the duplicate
information then a separate error. But also just tidy up/deduplicate
some of the code for generating the diagnostic text.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@269692 91177308-0d34-0410-b5e6-96231b3b80d8
2016-05-16 20:42:27 +00:00
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