[cmake-developers] Patch: Don't emit warning when config file not found

[Christoph Grüninger]

Dear CMake developers,
I am annoyed by the lengthy and disturbing warning CMake emits when a
package is not found because neither a Find*.cmake file is found nor a
*config.cmake file. I always try to have zero warnings, but missing
dependencies is common. Emitting a warning is too much and too noisy in
my opinion.

Please find attached patch, which reduces the warning to a single line
with the status that the package was not found.

Bye
Christoph

-- 
However, the occasional visit of success provides just the excitement
an engineer needs to face work the following day.   [Koichi Tanaka]
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