Don't override default option values with empty strings
Don't override default option values with empty strings

1stvamp/znc-cmd-notify,larsks/znc-push,tonyolag/znc-push,omnidan/znc-push,jreese/znc-push,kedare/znc-push,jreese/znc-notifo,mcg/znc-cmd-notify,dgw/znc-push,bgirard/znc-cmd-notify