Undocumented predicates
The following predicates are exported, but not or incorrectly documented.
-  mapilist(Arg1, Arg2, Arg3)
-  mapilist(Arg1, Arg2, Arg3, Arg4)
-  mapilist(Arg1, Arg2, Arg3, Arg4, Arg5)
-  mapilist(Arg1, Arg2, Arg3, Arg4, Arg5, Arg6)
-  mapilist(Arg1, Arg2, Arg3, Arg4, Arg5, Arg6, Arg7)
-  mapilist(Arg1, Arg2, Arg3, Arg4, Arg5, Arg6, Arg7, Arg8)