Update FIO parser to expected output

Newer versions of FIO changed the way results are displayed, causing
the parser to complain that the results are invalid. The newer versions
contain an extra value in the results line which can safely be ignored.

Signed-Off-By: Robert Clark <roclark@nvidia.com>

Author: roclark

bobber/lib/analysis/fio.py

@@ -155,7 +155,7 @@ def fio_iops_results(log_contents: str, systems: int, string_to_match: str,
         return []
     for result in match:
         iops = re.findall(r'[-+]?\d*\.\d+[kMG]|\d+[kMG]|\d+', result)
-        if len(iops) != 5:
+        if len(iops) != 6:
             raise ValueError('IOPS cannot be parsed from FIO log!')
         iops = clean_iops(iops[0])
         final_iops.append(iops)