Comet parameter: output_suffix
         
         - This parameter specifies the suffix string that is appended to
         the base output name for the pep.xml, pin.xml, txt and sqt output files.
         
- Use this parameter to give output files a unique suffix base name.
         
- For example, if the output_suffix parameter is set to
         "output_suffix = _000", then a search of the file base.mzXML
         will generate output files named base_000.pep.xml, base_000.pin.xml,
         base_000.txt, and/or base_000.sqt.
         
- Note that using this parameter could break downstream tools that
         expect the output base name to be the same as the input file base name.
         
- The default value is blank if this parameter is missing i.e.
         base.mzXML will generate base.pep.xml.
         
Example:
         
output_suffix = 
         
output_suffix = _some_suffix
         
output_suffix = any_string_you_want_without_spaces