[PATCH] D84673: [clang][cli] Port DiagnosticOpts to new option parsing system

[Jan Svoboda via Phabricator via llvm-commits]

jansvoboda11 added a comment.

I still need to figure out why Clang built in release mode replaces spaces in an error message by newlines and indents:

  $ ./build.noindex/debug/bin/clang -c clang/test/Driver/fmessage-length.c -fmessage-length=nan 
  clang-12: error: 
        invalid
        argument
        'nan'
        to
        -fmessage-length=

Where the debug built Clang behaves as expected:

  $ ./build.noindex/debug/bin/clang -c clang/test/Driver/fmessage-length.c -fmessage-length=nan
  clang-12: error: invalid argument 'nan' to -fmessage-length=


Repository:
  rG LLVM Github Monorepo

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