Comment # 1 on bug 1213657 from Andreas Stieger

checkbashisms ./usr/lib64/firefox/firefox.sh
possible bashism in ./usr/lib64/firefox/firefox.sh line 103 (should be '.', not
'source'):
source /etc/os-release
possible bashism in ./usr/lib64/firefox/firefox.sh line 154 ('function' is
useless):
    function create_langpack_link() {