filenames

[Jonas Sundström]

FileRef doesn't seem to like filenames that end badly, like this one: 
"filename.mp3 blarg". It results in an isNull(), which I didn't check 
for before. 

I double-checked with examples/tagwriter, and it too fails on filenames 
like this one.

(That is indeed an actual file. The string is correct, and it's passed 
on properly throughout the application, so the error is either in 
TagLib or in my understanding and usage of its API.)

/Jonas Sundström.                  www.kirilla.com