BuildSystem: fixed rule sanitize_pmdoc. Added make help.
BuildSystem: fixed rule sanitize_pmdoc. Added make help.

rudix-mac/rudix,FelixZhang00/rudix,rudix-mac/rudix,FelixZhang00/rudix,rudix-mac/rudix,FelixZhang00/rudix,FelixZhang00/rudix