[Bug c/93856] New: missing test for diagnostic: attribute %qs invalid positional argument

[roland.illig at gmx dot de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93856

            Bug ID: 93856
           Summary: missing test for diagnostic: attribute %qs invalid
                    positional argument
           Product: gcc
           Version: 10.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: roland.illig at gmx dot de
  Target Milestone: ---

From c-attribs.c:
> error ("attribute %qs invalid positional argument", attrstr);

This diagnostic is not covered by the test suite. Only its close relatives
"attribute %qs invalid positional argument %i" are covered.