[Bug libfortran/77868] Fail to NULL guard check for internal unit in inquire_via_unit

[jvdelisle at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77868

Jerry DeLisle <jvdelisle at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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           Assignee|unassigned at gcc dot gnu.org      |jvdelisle at gcc dot 
gnu.org

--- Comment #1 from Jerry DeLisle <jvdelisle at gcc dot gnu.org> ---
My hasty patch to generate an error in inquire_via_unit broke a few test cases.

Will fix shortly.