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, 2 insertions, 2 deletions

diff --git a/source/blender/blenkernel/intern/brush.c b/source/blender/blenkernel/intern/brush.c
index 346066b961a..58813c9878d 100644
--- a/source/blender/blenkernel/intern/brush.c
+++ b/source/blender/blenkernel/intern/brush.c
@@ -527,7 +527,7 @@ void BKE_brush_gpencil_presets(bContext *C)
 
 void BKE_brush_update_material(Main *bmain, Material *ma, Brush *exclude_brush)
 {
-	for (Brush *brush = bmain->brush.first; brush; brush = brush->id.next) {
+	for (Brush *brush = bmain->brushes.first; brush; brush = brush->id.next) {
 		if ((exclude_brush != NULL) && (brush == exclude_brush)) {
 			continue;
 		}
@@ -547,7 +547,7 @@ struct Brush *BKE_brush_first_search(struct Main *bmain, const eObjectMode ob_mo
 {
 	Brush *brush;
 
-	for (brush = bmain->brush.first; brush; brush = brush->id.next) {
+	for (brush = bmain->brushes.first; brush; brush = brush->id.next) {
 		if (brush->ob_mode & ob_mode)
 			return brush;
 	}