misc/emacs: actually use point argument that is passed to godef--call
misc/emacs: actually use point argument that is passed to godef--call

LGTM=adonovan
R=adonovan
CC=golang-codereviews
https://codereview.appspot.com/62600043

Committer: Alan Donovan <7069e9552f9d110b0a0f326b96f22f63fb99dfc1@google.com>

h8liu/golang,h8liu/golang,h8liu/golang,h8liu/golang,h8liu/golang,h8liu/golang,h8liu/golang