Don't show warning that isn't related to the scanned files

[php-coder]

Recently TravisCI added export _JAVA_OPTIONS="-Xmx2048m -Xms512m" to their environment and my tests started to fail because html5validator is showing warning for that:

$ export _JAVA_OPTIONS="-Xmx2048m -Xms512m"
$ html5validator --root src/main/webapp/WEB-INF/views
WARNING:html5validator.validator:Picked up _JAVA_OPTIONS: -Xmx2048m -Xms512m
$ echo rc=$?
rc=1

While I'm able to ignore it with --ignore-re I believe that this is a bug and should be fixed.

[php-coder]

Note that this warning is shown even without specifying --show-warnings option.

[svenkreiss]

Ugh. Looking into this.

[svenkreiss]

Thanks for reporting this!
Version 0.2.8 should have this fixed and is on pypi now.