Merge branch 'bugfix/fix-mua-sending' into '2.x'

Don't escape percent signs that are actually required in default mua command

Closes #59

See merge request !21

monkeysign/ui.py

@@ -157,7 +157,7 @@ class MonkeysignArgumentParser(argparse.ArgumentParser):
                                    'passed on the commandline in the "%%(to)s"'
                                    ' field, or the command must parse the '
                                    '"To:" header (default: %(default)s)'))
-        default_mua = "xdg-email --utf8 --to '%%(to)s' --subject '%%(subject)s' --body '%%(body)s' --attach '%%(attach)s'"
+        default_mua = "xdg-email --utf8 --to '%(to)s' --subject '%(subject)s' --body '%(body)s' --attach '%(attach)s'"
         self.add_argument('--mua', nargs='?', default=None, const=default_mua,
                             help=_('Mail User Agent to use to send mail. all '
                                    'parameters are passed on the commandline,'