(F) You specified an unknown Unicode option. See L<perlrun> documentation
of the C<-C> switch for the list of known options.
-=item Unknown Unicode option value %x
+=item Unknown Unicode option value %d
(F) You specified an unknown Unicode option. See L<perlrun> documentation
of the C<-C> switch for the list of known options.
Too many args on %s line of "%s"
U0 mode on a byte string
unable to find VMSPIPE.COM for i/o piping
-Unknown Unicode option value %d
Unrecognized character %s; marked by <-- HERE after %s<-- HERE near column %d
Unstable directory path, current directory changed unexpectedly
Unterminated compressed integer in unpack