Prefer shipped man page over external one (bug #518932)

(Portage version: 2.2.10/cvs/Linux x86_64, signed Manifest commit with key 0x981CA6FC)
correct url, bug 518736, thanks huyh <huyuehui at yahoo.com> for reporting

(Portage version: 2.2.10/cvs/Linux x86_64, signed Manifest commit with key 0xAABEFD55)
Remove old

(Portage version: 2.2.10/cvs/Linux x86_64, signed Manifest commit with key 3C5CF75A)
Stable for arm, bug #505796

(Portage version: 2.2.10/cvs/Linux x86_64, signed Manifest commit with key 0xAABEFD55)
Remove old.

(Portage version: 2.2.10/cvs/Linux x86_64, signed Manifest commit with key F3CFD2BD)
Stable for all wrt bug #518266; Drop old.

(Portage version: 2.2.8-r1/cvs/Linux x86_64, signed Manifest commit with key 0xC42EB5D6)