auto-closing of F30 ftbfs bugs

Hi all,

I run a script to close F30/rawhide FTBFS [1] bugs in the cases where
a build exists because maintainers sometimes forget to close the bug
after a successful build. About 20 bugs were closed this times. There
might be some false positives. If I closed a bug inadvertently, please
just reopen and remove 'FTBFS' from the bug subject so it doesn't get
closed the next time (I grep for this to filter the bug list).

[1] blocking <a href="" title=""></a>