Fix: typo in generated error message.
Fix: typo in generated error message.

wffurr/osmium,wffurr/osmium,osmium-org/osmium,osmium-org/osmium,osmium-org/osmium,wffurr/osmium,osmium-org/osmium,copyliu/osmium,copyliu/osmium,wffurr/osmium,copyliu/osmium