Repairing the log-region script

A typo was causing the gamelog to always omit the fortress group's untranslated name, while failing to fully prevent the error message caused by unloading the fortress.
Nitpicking log-region

One line was improperly indented, and a variable name no longer made sense.
Merge pull request #285 from eswald/log-region

Repairing the log-region script