[cfe-commits] [Patch] Fix spurious output in JSONCompilationDatabase

[Arnaud de Grandmaison]

The attached patch fixes spurious outputs from 
JSONCompilationDatabase::getCompileCommands when the file is not found.

This spurious output garbles the screen when libclang is used for example with 
clang_complete.

Let me known if I can apply it

Cheers,
--
Arnaud A. de Grandmaison
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