fdo#74584: complete revert various previous changes to upcase HTML tags

f1f8b3bfdc3406ea79b662a2fda3d0c1cb87bb10 says it reverts

        commit 3c84fa61570113d1dfb2523ab88f268eeeb46c3c.
        commit 96a1f60aeb2a7954533da9b4aa4947efb7a65e70.
        commit 1f74a3ce201bad68f160584900285e2c087ab2c0.
        commit 3d481254a07fe82d11953f9825a2f8fc6eeabc0b.

but only reverted 3d481254a07fe82d11953f9825a2f8fc6eeabc0b

Change-Id: I0530bd0b176b1f1e9bbf8eee78376991c664a850