[Bug testsuite/57605] colors break note pruning in the testsuite

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57605

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |jakub at gcc dot gnu.org

--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
gcc/testsuite/lib/prune.exp adds -fdiagnostics-color=never to options, if
libstdc++ doesn't source that tcl file, but uses something different, perhaps
it needs to be tweaked similarly.