Declare folks_small_set_copy properly
Declare folks_small_set_copy properly

Bug: https://bugzilla.gnome.org/show_bug.cgi?id=687161
Signed-off-by: Simon McVittie <2b470b34502dbf3ba4bcc04ea7e64f4e0e104f33@collabora.co.uk>
Reviewed-by: Philip Withnall <3ba3974e96044dcde818e6310ed799abe10671d4@tecnocode.co.uk>

GNOME/folks,renatofilho/folks,renatofilho/folks2,renatofilho/folks,pwithnall/folks,renatofilho/folks2,GNOME/folks,GNOME/folks,pwithnall/folks,renatofilho/folks2,renatofilho/folks,renatofilho/folks,renatofilho/folks2,pwithnall/folks