Arch Linux compatibility for regex pattern to find version in openssl_wrapper.py

[LukeLabrie]

The regex in openssl_wrapper.py assumes all solibs will have three numbers to represent their respective versions. Unfortunately on archlinux, sometimes they only have two. A fix (per @ebknudsen) could be:

full_version_regex = re.compile(r'[0-9]+\.[0-9]+(\.[0-9]+[a-z]?)*')

instead of

full_version_regex = re.compile(r'[0-9]+\.[0-9]+\.[0-9]+[a-z]?')

[boegel]

@LukeLabrie Are you up for opening a pull request for that change, so we can test it easily on a variety of systems?

[LukeLabrie]

@ebknudsen ^