Bug#876964: ycmd: libclang1-3.9 crashes when ycmd starts after upgrade to version 1:3.9.1-16

[Yllman, Jens]

If I run the JSON in the error message through a JSON validator I get 
tons of errors. But I do not know if that is some strange formatting 
from the error message or not. The data in the JSON looks like it is 
correct. So my statement about the JSON being wrong might be from the 
error message it self.

The reason I put it as grave is that for me ycmd does not work if I run 
libclang1-3.9 version 1:3.9.1-16. But now when I have version 1:3.9.1-17 
it seem to be working again.