Dear all,

some intrinsics may return character results with the same
characteristics as their first argument (e.g. PACK, MINVAL, ...).
If the first argument is of deferred-length, we need to derive
the character length of the result from the first argument, like
in the assumed-length case, but we must not handle it as
deferred-length, as that has a different argument passing
convention.

The attached - almost trivial and obvious - patch fixes that.

Regtested on x86_64-pc-linux-gnu.  OK for mainline?

As this is a rather simple fix for a wrong-code bug, I would
like to backport this at least to 13-branch, unless there
are major concerns.

Thanks,
Harald