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git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@179015 91177308-0d34-0410-b5e6-96231b3b80d8
Revert accidental commit r179015.

git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@179016 91177308-0d34-0410-b5e6-96231b3b80d8
Remove outdated part of help message.

The styles are now documented with the -style option. This fixes
llvm.org/PR15689.

git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@179017 91177308-0d34-0410-b5e6-96231b3b80d8