Minor fix to documentation for clutter_actor_get_anchor_point
Minor fix to documentation for clutter_actor_get_anchor_point

In both versions of clutter_actor_get_anchor_point the description of
the @anchor_y parameter was slightly wrong in different ways.

jigpu/clutter,djdeath/clutter-multithreaded,jigpu/clutter,rkudiyarov/clutter_osx,jigpu/clutter,jigpu/clutter,djdeath/clutter-multithreaded,spatulasnout/clutter,ebassi/clutter,Distrotech/clutter,Distrotech/clutter,heysion/clutter-clone,ebassi/clutter,dlespiau/clutter,collects/clutter,heysion/clutter-clone,GNOME/clutter,kerrickstaley/clutter-vala,djdeath/clutter,djdeath/clutter,dlespiau/clutter,spatulasnout/clutter,spatulasnout/clutter,GNOME/clutter,djdeath/clutter,djdeath/clutter-android,nobled/clutter,Distrotech/clutter,collects/clutter,kerrickstaley/clutter-vala,ebassi/clutter,rkudiyarov/clutter_osx,collects/clutter,djdeath/clutter-android,Distrotech/clutter,heysion/clutter-clone,djdeath/clutter-multithreaded,djdeath/clutter-android,dlespiau/clutter,tardyp/clutter,heysion/clutter-clone,spatulasnout/clutter,djdeath/clutter,nobled/clutter,Distrotech/clutter,GNOME/clutter,GNOME/clutter,djdeath/clutter-android,rkudiyarov/clutter_osx,tardyp/clutter,jigpu/clutter,Distrotech/clutter,djdeath/clutter,djdeath/clutter-multithreaded,rkudiyarov/clutter_osx,djdeath/clutter,collects/clutter,ebassi/clutter,jigpu/clutter,kerrickstaley/clutter-vala,ebassi/clutter,collects/clutter,tardyp/clutter,spatulasnout/clutter,heysion/clutter-clone,nobled/clutter,GNOME/clutter,kerrickstaley/clutter-vala,djdeath/clutter-android