Cleanup: add back comment that was removed when moving code

Keep comments when moving code between files.

Also wrap lines over 120 width.

release/scripts/startup/bl_ui/properties_paint_common.py

@@ -418,7 +418,15 @@ def brush_basic_gpencil_paint_settings(layout, _context, brush, tool, *, compact
         row.prop(gp_settings, "pen_strength", slider=True)
         row.prop(gp_settings, "use_strength_pressure", text="", icon='STYLUS_PRESSURE')
 
-    if tool.idname in {"builtin.arc", "builtin.curve", "builtin.line", "builtin.box", "builtin.circle", "builtin.polyline"}:
+    # FIXME: tools must use their own UI drawing!
+    if tool.idname in {
+            "builtin.arc",
+            "builtin.curve",
+            "builtin.line",
+            "builtin.box",
+            "builtin.circle",
+            "builtin.polyline",
+    }:
         settings = _context.tool_settings.gpencil_sculpt
         if is_toolbar:
             row = layout.row(align=True)