TagLib::String stripWhiteSpace crashes?

[Vitali Lovich]

I was just starting out with TagLib, and when String represents a blank 
string (i.e. 5 spaces), a call to stripWhiteSpace will crash.  It seems 
that the first conditional isn't written quite correctly - shouldn't the 
begin != end check be the first statement?  With that change made, it no 
longer crashes on blank strings.

Here's the stripping conditional that doesn't crash and seems to work.  
I've never used patch.

while(begin != end && (*begin == '\t' || *begin == '\n' ||
      *begin == '\f' || *begin == '\r' || *begin == ' '))
  {
    ++begin;
  }