normalize_cases is a script in CIMEROOT/CIME/Tools.

$ ./normalize_cases --help
normalize_cases case1 case2
normalize_cases --help

    > normalize_cases case1 case2

Remove uninteresting diffs between cases by changing the first to be more like
the second. This is for debugging purposes and meant to assist the user when
they want to run case_diff.

positional arguments:
  case1          First case. This one will be changed
  case2          Second case. This one will not be changed

  -h, --help     show this help message and exit

Logging options:
  -d, --debug    Print debug information (very verbose) to file
                 (default: False)
  -v, --verbose  Add additional context (time and file) to log messages
                 (default: False)
  -s, --silent   Print only warnings and error messages (default: False)