`--out-cue-xml` not working as expected

[fenugrec]

built from latest master (906d0148ff89e5367abfadc760c8d86659970f9a) , behaviour is strange and depends on the order of args :

$ ./bwfmetaedit  <filename.wav> --out-cue-xml
Only one input file is allowed for the output(s): --out-cue=

$ ./bwfmetaedit --out-cue-xml <filename.wav>
...... prints the XML to stdout, no error message, no attempt to create filename.wav.xml

As I understand, --out-cue-xml should create a new .xml file with the cue points ? seems like CLI args are maybe not parsed correctly, unless I'm using it wrong...

[JeromeMartinez]

Latest snapshots includes the fix.