patch -p 0 < 1.2-1.2.1
patch -p 0 < 1.2.1-1.2.2
patch -p 0 < 1.2.2-1.2.3
patch -p 0 < 1.2.3-1.2.4
patch -p 0 < 1.2.4-1.2.5
      [...]
patch -p 0 < 1.2.21-1.2.22
