revert error message to previous

Author: Sascha Kehrli

checker/src/main/java/org/checkerframework/checker/rlccalledmethods/messages.properties

@@ -1,2 +1,2 @@
-owning.override.return=Incompatible ownership of return type.%nfound   : no ownership annotation or @Owning%nrequired: @NotOwning%nConsequence: method %s in %s cannot override method %s in %s
-owning.override.param=Incompatible ownership of parameter %s.%nfound   : no ownership annotation or @NotOwning%nrequired: @Owning%nConsequence: method %s in %s cannot override method %s in %s
+owning.override.return=Incompatible ownership for return.%nfound   : no ownership annotation or @Owning%nrequired: @NotOwning%nConsequence: method %s in %s cannot override method %s in %s
+owning.override.param=Incompatible ownership for parameter %s.%nfound   : no ownership annotation or @NotOwning%nrequired: @Owning%nConsequence: method %s in %s cannot override method %s in %s