style cleanup: pep8, also quiet compiler warning.

release/scripts/startup/bl_operators/presets.py

@@ -294,6 +294,7 @@ class AddPresetCloth(AddPresetBase, Operator):
 
     preset_subdir = "cloth"
 
+
 class AddPresetFluid(AddPresetBase, Operator):
     '''Add a Fluid Preset'''
     bl_idname = "fluid.preset_add"

release/scripts/startup/bl_ui/properties_physics_fluid.py

@@ -20,6 +20,7 @@
 import bpy
 from bpy.types import Panel, Menu
 
+
 class FLUID_MT_presets(Menu):
     bl_label = "Fluid Presets"
     preset_subdir = "fluid"

source/blender/editors/mesh/editmesh_rip.c

@@ -228,10 +228,10 @@ static EdgeLoopPair *edbm_ripsel_looptag_helper(BMesh *bm)
 			break;
 		}
 
-		e_first = e;
-
 		/* initialize  */
+		e_first = e;
 		v_step = e_first->v1;
+		e_step = NULL; /* quiet warning, will never remain this value */
 
 		uid_start = uid;
 		while ((e = edbm_ripsel_edge_mark_step(v_step, uid))) {