Cosmetic fixes for old VMware guest tools to sync with the latest one.
* Update pkg-descr to point a new ports location.
* Update RUN_DEPENDS to point a new ports location.
* Sync COMMENT message to all versions.
* Use INSTALL_PROGRAM instead of CP since it installs a program.
* Wrap interactive-related script with .if !defined(BATCH) appropriately.
* Unhide UMOUNT command and users will know what's happened.