break;
#endif
case CXt_SUBST:
- croak("%s() cannot target a substitution context", which);
+ croak("%s() can't target a substitution context", which);
break;
default:
- croak("%s() don't know how to leave a %s context",
+ croak("%s() doesn't know how to leave a %s context",
which, SU_CXNAME(cxstack + cxix));
break;
}