_, err = p.communicate()
parallel = p.returncode == 0
if opt.verbose:
- if err != b'Invalid option specified: -t1\n':
+ if len(err) > 0 and err != b'Invalid option specified: -t1\n':
log('Unexpected par2 error output\n')
- log(repr(err))
+ log(repr(err) + '\n')
if parallel:
log('Assuming par2 supports parallel processing\n')
else: