Cleanup: spelling in comments

source/blender/python/intern/bpy_rna.c

@@ -1397,7 +1397,7 @@ PyObject *pyrna_prop_to_py(PointerRNA *ptr, PropertyRNA *prop)
 
       buf = RNA_property_string_get_alloc(ptr, prop, buf_fixed, sizeof(buf_fixed), &buf_len);
 #ifdef USE_STRING_COERCE
-      /* Only file paths get special treatment, they may contain non utf-8 chars. */
+      /* Only file paths get special treatment, they may contain non UTF-8 chars. */
       if (subtype == PROP_BYTESTRING) {
         ret = PyBytes_FromStringAndSize(buf, buf_len);
       }
@@ -6487,7 +6487,7 @@ static PyObject *pyrna_func_doc_get(BPy_FunctionRNA *self, void *UNUSED(closure)
 PyTypeObject pyrna_struct_meta_idprop_Type = {
     PyVarObject_HEAD_INIT(NULL, 0) "bpy_struct_meta_idprop", /* tp_name */
 
-    /* NOTE: would be PyTypeObject, but subtypes of Type must be PyHeapTypeObject's. */
+    /* NOTE: would be PyTypeObject, but sub-types of Type must be PyHeapTypeObject's. */
     sizeof(PyHeapTypeObject), /* tp_basicsize */
 
     0, /* tp_itemsize */
@@ -7308,7 +7308,7 @@ static PyObject *pyrna_srna_PyBase(StructRNA *srna)  //, PyObject *bpy_types_dic
   if (base && base != srna) {
     // printf("debug subtype %s %p\n", RNA_struct_identifier(srna), srna);
     py_base = pyrna_srna_Subtype(base);  //, bpy_types_dict);
-    Py_DECREF(py_base);                  /* Srna owns, this is only to pass as an arg. */
+    Py_DECREF(py_base);                  /* `srna` owns, this is only to pass as an argument. */
   }
 
   if (py_base == NULL) {
@@ -8846,7 +8846,7 @@ static void bpy_class_free(void *pyob_ptr)
 }
 
 /**
- * \note This isn't essential to run on startup, since subtypes will lazy initialize.
+ * \note This isn't essential to run on startup, since sub-types will lazy initialize.
  * But keep running in debug mode so we get immediate notification of bad class hierarchy
  * or any errors in "bpy_types.py" at load time, so errors don't go unnoticed.
  */