mnd with file permission (0o644 and co)

[ccoVeille]

  mnd: 
     ignored-numbers: 
       # UNIX permissions mask 
       - "0o700" # rwx------ 
       - "0o600" # rw------- 
  
     ignored-functions: 
       # Functions that require a UNIX permissions mask 
       - "os.WriteFile" 
       - "os.OpenFile" 
       - "os.MkdirAll"

Originally posted by @ccoVeille in nobe4/gh-not#240 (comment)