LCL: load resourcestring translation only if it exists and is NOT fuzzy. This matches gettext behaviour and allows to avoid a lot of crashes related to formatting arguments mismatches. Bugs 26423, 26527.

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@46044 4005530d-fff6-0310-9dd1-cebe43e6787f