Fixing writing of PO files with plurals.
Fixing writing of PO files with plurals.

m4rcsch/lithium-core-library,whowgames/lithium,SensCritique/lithium,graphis/lithium,pixelcog/lithium,UnionOfRAD/lithium,qoqa/lithium,pixelcog/lithium,wbeater/lithium,m4rcsch/li3_framework,jails/lithium,davidpersson/lithium,datachand/lithium,mehlah/lithium,UnionOfRAD/lithium,mehlah/lithium,SensCritique/lithium,wbeater/lithium,graphis/lithium,muyehub/lithium,m4rcsch/lithium-core-library,jails/lithium,whowgames/lithium,UnionOfRAD/framework,muyehub/lithium,datachand/lithium,davidpersson/lithium,qoqa/lithium