Code review comment for lp:~widelands-dev/widelands/string-fixes

1. see inline comment
2. I did a spotcheck of the helptexts and found multiple issues with the # sign in TRANSLATORS remarks not correctly implemented. Just checked a couple of frisian buildings where the ' is used in defined performance helptexts and not used in other buildings where undefined messages are in place. Found issues in the barbarians helptexts as well