[Bug fortran/79838] New: inconsistent trailing dot in diagnostic "The name %qs has already been used"

["roland.illig at gmx dot de" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79838

            Bug ID: 79838
           Summary: inconsistent trailing dot in diagnostic "The name %qs
                    has already been used"
           Product: gcc
           Version: 7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: roland.illig at gmx dot de
  Target Milestone: ---

gfc_error ("The name %qs at %C has already been used as "
           "an external module name.", use_list->module_name);

This error message, in contrast to almost every other error message, has a
trailing period. This period should be removed.