I'm developing a FileMaker app that generates an XML file, and I've been
using TextWrangler 4.0.1 to inspect the generated file.
Something changed during the past several days, and TextWrangler is now
reporting an error when I open the generated file:
*Incorrectly formed UTF-8*
The UTF-8 file "filename.xml" is damaged for incorrectly formed; please
proceed with caution.
If dismiss the error, save the file under a new name, and open the cloned
file, there's no error. Comparing the cloned file to the generated file
reports there's no difference.
TextWrangler's footer status bar shows the two files have the same size.
But Get Info on the two files shows that the cloned file is two bytes
larger than the original generated file.
How can I determine why TextWrangler is unhappy with my generated XML file?