Revert "Fix syntaxis in a user-visible message"

This reverts commit eb3a62c43e012c2914987e1bd3a33c32833d275c.

Please avoid changing strings on the stable branch unless it's *absolutely*
necessary. Fixing typos on master is enough.
Revert "Fix syntaxis in user-visible messages"

This reverts commit 48e4cb708e99bd17b5f5cf7e511141c65131bb82.

Please avoid changing strings on the stable branch unless it's *absolutely*
necessary. Fixing typos on master is enough.