Merging r354351:

Merging r354351:
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r354351 | hans | 2019-02-19 17:58:25 +0100 (Tue, 19 Feb 2019) | 12 lines

Remove extraneous space in MSVC-style diagnostic output

There was an extra space between the file location and the diagnostic
message:

  /tmp/a.c(1,12):  warning: unused parameter 'unused'

the tests didn't catch this due to FileCheck not running in --strict-whitespace mode.

Reported by Marco: http://lists.llvm.org/pipermail/cfe-dev/2019-February/061326.html

Differential revision: https://reviews.llvm.org/D58377
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git-svn-id: https://llvm.org/svn/llvm-project/cfe/branches/release_80@354459 91177308-0d34-0410-b5e6-96231b3b80d8