Homebrew-cask: Brew doctor shows few warnings about installed Wkhtmltopdf

[bocharsky-bw]

Steps to reproduce:

1. Install Wkhtmltopdf $ brew install Caskroom/cask/wkhtmltopdf
2. Run $ brew doctor
   

   Logs

Brew doctor's output:

Please note that these warnings are just used to help the Homebrew maintainers
with debugging if you file an issue. If everything you use Homebrew for is
working fine: please don't worry and just ignore them. Thanks!

Warning: Unbrewed dylibs were found in /usr/local/lib.
If you didn't put them there on purpose they could cause problems when
building Homebrew formulae, and may need to be deleted.

Unexpected dylibs:
    /usr/local/lib/libwkhtmltox.0.12.3.dylib

Warning: Unbrewed header files were found in /usr/local/include.
If you didn't put them there on purpose they could cause problems when
building Homebrew formulae, and may need to be deleted.

Unexpected header files:
    /usr/local/include/wkhtmltox/image.h
    /usr/local/include/wkhtmltox/pdf.h

I'd like you were awere about it, Wkhtmltopdf works fine for me

[vitorgalvao]

wkhtmltopdf is a pkg, which means it can write to whatever it wants. At the same time, homebrew is checking /usr/local and finding stuff it did not put there by itself, hence the waning.

It’s fine, and there’s nothing we can do about it.