[Bug 1090358] [doc] we now default to firewalld

http://bugzilla.opensuse.org/show_bug.cgi?id=1090358 http://bugzilla.opensuse.org/show_bug.cgi?id=1090358#c2 --- Comment #2 from OBSbugzilla Bot --- This is an autogenerated message for OBS integration: This bug (1090358) was mentioned in https://build.opensuse.org/request/show/976384 15.4 / release-notes-openSUSE -- You are receiving this mail because: You are on the CC list for the bug.