Minor code reformatting.

Cython/Compiler/Optimize.py

@@ -1192,9 +1192,9 @@ class SwitchTransform(Visitor.EnvTransform):
             if common_var is None:
                 self.visitchildren(node)
                 return node
-            cases.append(Nodes.SwitchCaseNode(pos = if_clause.pos,
-                                              conditions = conditions,
-                                              body = if_clause.body))
+            cases.append(Nodes.SwitchCaseNode(pos=if_clause.pos,
+                                              conditions=conditions,
+                                              body=if_clause.body))
 
         condition_values = [
             cond for case in cases for cond in case.conditions]
@@ -1206,10 +1206,10 @@ class SwitchTransform(Visitor.EnvTransform):
             return node
 
         common_var = unwrap_node(common_var)
-        switch_node = Nodes.SwitchStatNode(pos = node.pos,
-                                           test = common_var,
-                                           cases = cases,
-                                           else_clause = node.else_clause)
+        switch_node = Nodes.SwitchStatNode(pos=node.pos,
+                                           test=common_var,
+                                           cases=cases,
+                                           else_clause=node.else_clause)
         return switch_node
 
     def visit_CondExprNode(self, node):
@@ -1224,6 +1224,7 @@ class SwitchTransform(Visitor.EnvTransform):
                 or self.has_duplicate_values(conditions):
             self.visitchildren(node)
             return node
+
         return self.build_simple_switch_statement(
             node, common_var, conditions, not_in,
             node.true_val, node.false_val)