Spelling: It's Versus Its

Corrects incorrect usage of contraction for 'it is', when possessive 'its' was required.

Differential Revision: https://developer.blender.org/D9250

Reviewed by Campbell Barton

source/blender/python/intern/bpy_rna.c

@@ -8136,7 +8136,7 @@ static int bpy_class_validate_recursive(PointerRNA *dummyptr,
      * 'FUNC_USE_SELF_TYPE' for many functions. */
     const bool is_staticmethod = (flag & FUNC_NO_SELF) && !(flag & FUNC_USE_SELF_TYPE);
 
-    /* Store original so we can decrement it's reference before returning. */
+    /* Store original so we can decrement its reference before returning. */
     PyObject *item_orig = item;
 
     if (is_staticmethod) {

source/blender/python/intern/bpy_rna_types_capi.c

@@ -87,7 +87,7 @@ static struct PyMethodDef pyrna_uilayout_methods[] = {
 /* -------------------------------------------------------------------- */
 /** \name Window Manager Clipboard Property
  *
- * Avoid using the RNA API because this value may change between checking it's length
+ * Avoid using the RNA API because this value may change between checking its length
  * and creating the buffer, causing writes past the allocated length.
  * \{ */
 

source/blender/python/intern/bpy_rna_ui.c

@@ -17,7 +17,7 @@
 /** \file
  * \ingroup pythonintern
  *
- * This adds helpers to #uiLayout which can't be added easily to RNA it's self.
+ * This adds helpers to #uiLayout which can't be added easily to RNA itself.
  */
 
 #include <Python.h>