Minor changes from testing 6.9.9999 a bit in prepration for
6.9.2, haven't tested 6.10 again yet so required changes may
be incomplete there.
- gperf patch is upstreamed in 6.9.9999 too now
- workaround some new broken user_facing .txt, only tested
6.9.9999 but assuming 6.10/11 have the same problem right now
- tentatively drop the race condition workaround, a new
"DEPENDS WebEngineCore_sync_headers" has appeared in 6.9.9999 and
that may or may not be enough to make that obsolete but I have no
real way to test for sure, will re-add if we get reports
Signed-off-by: Ionen Wolkens <ionen@gentoo.org>