RELNOTES: add missing issue references

Interestingly, some really old issues were fixed in this release (#408
is from 2016).

Relates to #408 #928 #3042.

RELNOTES

@@ -8,15 +8,15 @@ firejail (0.9.68rc2) baseline; urgency=low
  * feature: ALLOW_TRAY condition (#4510 #4599)
  * feature: intrusion detection system (--ids-init, --ids-check)
  * feature: deterministic shutdown command (--deterministic-exit-code,
- --deterministic-shutdown) (#4635)
+ --deterministic-shutdown) (#928 #3042 #4635)
  * feature: noprinters command (#4607 #4827)
  * feature: network monitor (--nettrace)
  * feature: network locker (--netlock) (#4848)
  * feature: whitelist-ro profile command (#4740)
  * feature: Allow apostrophe in whitelist and blacklist (#4614)
  * feature: AppImage support in --build command (#4878)
  * modifs: exit code: distinguish fatal signals by adding 128 (#4533)
- * modifs: firecfg.config is now installed to /etc/firejail/ (#4669)
+ * modifs: firecfg.config is now installed to /etc/firejail/ (#408 #4669)
  * modifs: close file descriptors greater than 2 (--keep-fd) (#4845)
  * modifs: nogroups now stopped causing certain system groups to be dropped,
  which are now controlled by the relevant "no" options instead (such as