[Bug-gnupod] input not verified as sane

[Dylan Martin]

Hi, I use gnupod all the time.  Thanks for making it!

I just downloaded a podcast with non-ascii characters and possibly
problematical '<' and '>' marks in the title.

gnupod_addsong.pl added these items to GNUtunesDB.xml and every
subsequent attempt to read the database produces an error.

not well-formed (invalid token) at line 654, column 398, byte 548847
at /usr/lib/perl5/vendor_perl/5.8.8/i386-linux-thread-multi/XML/Parser.pm
line 187

I was able to fix this by changing the questionable string to
something reasonable in the GNUtunesDB.xml file.

Also, it would be really nice if the error message was more helpful,
e.g. said which file contained the problem.

Thanks
-Dylan