results: skip comments in exclude-paths.txt

[stefan-cornelius]

This allows comments in the path exlusion regex file. Instead of adding each line as a filtering rule, it skips empty lines and lines starting with a # symbol.

Fixes https://issues.redhat.com/browse/OSH-508

[stefan-cornelius]

Just noticed the comment about the sanity check in OSH-508. Will add ...

[kdudka]

@stefan-cornelius The code change looks good. Please delimit the commit title with a blank line as suggested in the git-commit(1) man page:

Though not required, it’s a good idea to begin the commit message with a single short (no more than 50 characters)
line summarizing the change, followed by a blank line and then a more thorough description. The text up to the first
blank line in a commit message is treated as the commit title, and that title is used throughout Git. For example,
git-format-patch(1) turns a commit into email, and it uses the title on the Subject line and the rest of the commit
in the body.

I propose this as the commit title: results: skip comments in exclude-paths.txt

[kdudka]

@stefan-cornelius Merging, thanks!