mlx_fs_dump SyntaxWarning "is" / "is not" with a literal

[davehouser1]

When running mlx_fs_dump only python 3.9.5, I see the following syntax warnings:

# ./mlx_fs_dump -v
./mlx_fs_dump:294: SyntaxWarning: "is not" with a literal. Did you mean "!="?
  if (i % 2) and (cr is not "0"):
./mlx_fs_dump:306: SyntaxWarning: "is not" with a literal. Did you mean "!="?
  if node.dst_type is not "0":
./mlx_fs_dump:310: SyntaxWarning: "is not" with a literal. Did you mean "!="?
  if node.dst_vhca_id_valid is not 0:
./mlx_fs_dump:319: SyntaxWarning: "is not" with a literal. Did you mean "!="?
  if (i % 2) and (cr is not "0"):
./mlx_fs_dump:324: SyntaxWarning: "is" with a literal. Did you mean "=="?
  if cr is "IPv4":
./mlx_fs_dump:340: SyntaxWarning: "is not" with a literal. Did you mean "!="?
  if index is not -1:
./mlx_fs_dump:351: SyntaxWarning: "is not" with a literal. Did you mean "!="?
  if index is not -1:
./mlx_fs_dump:446: SyntaxWarning: "is" with a literal. Did you mean "=="?
  if match_enable is "NO_MATCH":
usage: mlx_fs_dump [-h] -d DEVICE [-g GVMI] [-c COLOR] [-f IN_FILE]
mlx_fs_dump: error: the following arguments are required: -d

Solution was to adjust all is not to != and all is to ==.