Fix incorrect filename in Makefile rule
As reported in https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=864612 , there is a copy and paste error in the Makefile rule for irk.html
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
As reported in https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=864612 , there is a copy and paste error in the Makefile rule for irk.html