Cleanup: spelling in comments

source/blender/blenkernel/BKE_bvhutils.h

@@ -69,7 +69,7 @@ typedef struct BVHTreeFromMesh {
   BVHTree_NearestPointCallback nearest_callback;
   BVHTree_RayCastCallback raycast_callback;
 
-  /* Vertex array, so that callbacks have instante access to data */
+  /* Vertex array, so that callbacks have instant access to data. */
   const struct MVert *vert;
   const struct MEdge *edge; /* only used for BVHTreeFromMeshEdges */
   const struct MFace *face;

source/blender/editors/interface/interface_layout.c

@@ -282,7 +282,7 @@ static int ui_layout_vary_direction(uiLayout *layout)
 
 static bool ui_layout_variable_size(uiLayout *layout)
 {
-  /* Note that this code is probably a bit flakey, we'd probably want to know whether it's
+  /* Note that this code is probably a bit flaky, we'd probably want to know whether it's
    * variable in X and/or Y, etc. But for now it mimics previous one,
    * with addition of variable flag set for children of grid-flow layouts. */
   return ui_layout_vary_direction(layout) == UI_ITEM_VARY_X || layout->variable_size;

source/blender/editors/space_outliner/outliner_tools.c

@@ -845,7 +845,7 @@ static void id_override_library_create_fn(bContext *C,
         if (!ID_IS_LINKED(te->store_elem->id)) {
           break;
         }
-        /* If we'd need to override that arent ID, but it is not overridable, abort. */
+        /* If we'd need to override that aren't ID, but it is not overridable, abort. */
         if (!ID_IS_OVERRIDABLE_LIBRARY(te->store_elem->id)) {
           BKE_main_id_tag_all(bmain, LIB_TAG_DOIT, false);
           BKE_reportf(reports,

source/blender/python/intern/bpy_interface.c

@@ -155,7 +155,7 @@ void bpy_context_clear(bContext *UNUSED(C), const PyGILState_STATE *gilstate)
   }
   else if (py_call_level == 0) {
     /* XXX: Calling classes currently won't store the context :\,
-     * can't set NULL because of this. but this is very flakey still. */
+     * can't set NULL because of this. but this is very flaky still. */
 #if 0
     BPY_context_set(NULL);
 #endif

source/blender/python/intern/bpy_rna_id_collection.c

@@ -227,7 +227,7 @@ static PyObject *bpy_user_map(PyObject *UNUSED(self), PyObject *args, PyObject *
       }
 
       if (!data_cb.is_subset &&
-          /* We do not want to pre-add keys of flitered out types. */
+          /* We do not want to pre-add keys of filtered out types. */
           (key_types_bitmap == NULL || id_check_type(id, key_types_bitmap)) &&
           /* We do not want to pre-add keys when we have filter on value types,
            * but not on key types. */

source/blender/python/mathutils/mathutils_Vector.c

@@ -1926,7 +1926,7 @@ static PyObject *Vector_imatmul(PyObject *v1, PyObject *v2)
   return NULL;
 }
 
-/* divid: obj / obj */
+/* divide: obj / obj */
 static PyObject *Vector_div(PyObject *v1, PyObject *v2)
 {
   float *vec = NULL, scalar;
@@ -2939,7 +2939,7 @@ static int row_vector_multiplication(float r_vec[MAX_DIMENSIONS],
   memcpy(vec_cpy, vec->vec, vec_size * sizeof(float));
 
   r_vec[3] = 1.0f;
-  /* muliplication */
+  /* Multiplication. */
   for (col = 0; col < mat->num_col; col++) {
     double dot = 0.0;
     for (row = 0; row < mat->num_row; row++) {

source/blender/python/mathutils/mathutils_geometry.c

@@ -201,7 +201,7 @@ static PyObject *M_Geometry_intersect_line_line(PyObject *UNUSED(self), PyObject
   }
 
   if (result == 0) {
-    /* collinear */
+    /* Co-linear. */
     Py_RETURN_NONE;
   }