Cleanup: use plural names for Main lists

Convention was not to but after discussion on 918941483f7e we agree its
best to change the convention.

Names now mostly follow RNA.

Some exceptions:

- Use 'nodetrees' instead of 'nodegroups'
  since the struct is called NodeTree.
- Use 'gpencils' instead of 'grease_pencil'
  since 'gpencil' is a common abbreviation in the C code.

Other exceptions:

- Leave 'wm' as it's a list of one.
- Leave 'ipo' as is for versioning.

1 files changed, 1 insertions, 1 deletions

diff --git a/source/blender/makesrna/intern/rna_key.c b/source/blender/makesrna/intern/rna_key.c
index 80d6ca1ca15..8fe20a1b03f 100644
--- a/source/blender/makesrna/intern/rna_key.c
+++ b/source/blender/makesrna/intern/rna_key.c
@@ -655,7 +655,7 @@ static void rna_Key_update_data(Main *bmain, Scene *UNUSED(scene), PointerRNA *p
 	Key *key = ptr->id.data;
 	Object *ob;
 
-	for (ob = bmain->object.first; ob; ob = ob->id.next) {
+	for (ob = bmain->objects.first; ob; ob = ob->id.next) {
 		if (BKE_key_from_object(ob) == key) {
 			DEG_id_tag_update(&ob->id, ID_RECALC_GEOMETRY);
 			WM_main_add_notifier(NC_OBJECT | ND_MODIFIER, ob);