no. when i said "use the 'reportbug' cmdline tool" i meant "please use the 'reportbug' cmdline" tool, like that:
reportbug gem
Ok. It was clear that it's a cmdline tool, I was just not aware of it.
'reportbug' is a tool installed on Debian and derivatives to report bugs against system installed packages. since the bug you are experiencing has nothing to do with Gem itself but *only* with the "gem" package provided by your distribution, you should report a bug with your distribution, and not on the pd-gem sourceforge bugtracker (and not at all at the pure-data sourceforge bugtracker).
this is explained here
Did it, hope I did it right...