style cleanup & some spelling

source/blender/bmesh/intern/bmesh_log.c

@@ -736,7 +736,7 @@ void BM_log_redo(BMesh *bm, BMLog *log)
  * vertex in the map of added vertices.
  *
  * If the vertex already existed prior to the current log entry, a
- * seperate key/value map of modified vertices is used (using the
+ * separate key/value map of modified vertices is used (using the
  * vertex's ID as the key). The values stored in that case are
  * the vertex's original state so that an undo can restore the
  * previous state.

source/blender/bmesh/intern/bmesh_walkers_impl.c

@@ -858,7 +858,7 @@ static void *bmw_EdgeringWalker_step(BMWalker *walker)
 	if (!EDGE_CHECK(e)) {
 		/* walker won't traverse to a non-manifold edge, but may
 		 * be started on one, and should not traverse *away* from
-		 * a non-manfold edge (non-manifold edges are never in an
+		 * a non-manifold edge (non-manifold edges are never in an
 		 * edge ring with manifold edges */
 		return e;
 	}

source/blender/gpu/intern/gpu_buffers.c

@@ -1391,7 +1391,7 @@ void GPU_update_mesh_buffers(GPU_Buffers *buffers, MVert *mvert,
 		vert_data = glMapBufferARB(GL_ARRAY_BUFFER_ARB, GL_WRITE_ONLY_ARB);
 
 		if (vert_data) {
-			/* Vertex data is shared if smooth-shaded, but seperate
+			/* Vertex data is shared if smooth-shaded, but separate
 			   copies are made for flat shading because normals
 			   shouldn't be shared. */
 			if (buffers->smooth) {

source/blender/makesrna/intern/rna_access.c

@@ -3153,10 +3153,10 @@ static int rna_property_array_length_all_dimensions(PointerRNA *ptr, PropertyRNA
 	const int dim = RNA_property_array_dimension(ptr, prop, len);
 	int size;
 
-	if(dim == 0)
+	if (dim == 0)
 		return 0;
 
-	for(size = 1, i = 0; i < dim; i++)
+	for (size = 1, i = 0; i < dim; i++)
 		size *= len[i];
 	
 	return size;
@@ -3197,7 +3197,7 @@ static int rna_raw_access(ReportList *reports, PointerRNA *ptr, PropertyRNA *pro
 		}
 
 		/* dynamic array? need to get length per item */
-		if(itemprop->getlength) {
+		if (itemprop->getlength) {
 			itemprop = NULL;
 		}
 		/* try to access as raw array */