testsuite: Fix up pr107397.f90 test [PR107397]
The pr107397.f90 test FAILs for me, one problem was that the
added diagnostics has an indefinite article before BOZ, but
the test dg-error didn't. The other problem was that on the
other dg-error there was no space between the string and closing
}, so it was completely ignored and the error was an excess
error.
2022-12-19 Jakub Jelinek <jakub@redhat.com>
PR fortran/107397
* gfortran.dg/pr107397.f90: Adjust expected diagnostic wording and
add space between dg-error string and closing }.