upgrade rpm command

rpm - v0.1.5

rpm.k [<opt> [<input>] ]

  --help : help
  --check <pkg> : check pkg
  --install <rpm file | rpm dir> : Install rpm file
  --iso <file file2...> : rpm source file with iso ( NOT support yet )
  --src <dir dir2 ...>  : rpm source dir
  --extract <rpm file>  : extract rpm file (not install)
  -C <dir>              : dest dir