Fixes: #30
now you can add a regular expression to the rules to be run
i.e. `git-validation -run "dco,message_regexp='^JIRA-[0-9]+ [A-Z].*$'"`
Signed-off-by: Vincent Batts <vbatts@hashbangbash.com>
ideally `-q` would be only return code of 0 or non-zero, but it already
had some output. This adds only failed tests per commit.
Signed-off-by: Vincent Batts <vbatts@hashbangbash.com>