update locale

src/libslic3r/PrintConfig.cpp

@@ -1921,6 +1921,7 @@ void PrintConfigDef::init_fff_params()
     
     def = this->add("filament_shrinkage_compensation_z", coPercents);
     def->label = L("Shrinkage (Z)");
+    // xgettext:no-c-format, no-boost-format
     def->tooltip = L("Enter the shrinkage percentage that the filament will get after cooling (94% if you measure 94mm instead of 100mm)."
         " The part will be scaled in Z to compensate.");
     def->sidetext = L("%");