.clang-format

Name those options 'env', as they are global options that are common to
all the commands (normally). Not using the POSIX env for now for that,
but they are setted in a same-fashion way:

lkt port=6601 queue 10
    \         \     \_ options passed to the command
     \         \______ the commands
      \_______________ the env, or global options