C++, minor code formatting fixes.

tests/test_domain_cpp.py

@@ -133,10 +133,10 @@ def test_type_definitions():
     raises(DefinitionError, parse, 'function', 'int foo(D d=x(a')
     check('function', 'int foo(const A&... a)')
     check('function', 'virtual void f()')
-    
+
     check('class', 'public A', 'A')
     check('class', 'private A')
-    
+
     check('enum', 'A')
     check('enum', 'A : std::underlying_type<B>::type')
     check('enum', 'struct A')
@@ -145,7 +145,7 @@ def test_type_definitions():
     check('enum', 'class A : unsigned int')
     check('enum', 'class public A', 'class A')
     check('enum', 'class private A')
-    
+
     check('enumerator', 'A')
     check('enumerator', 'A = std::numeric_limits<unsigned long>::max()')
 
@@ -158,7 +158,6 @@ def test_bases():
     check('class', 'A : B, C')
     check('class', 'A : B, protected C, D')
 
-
 def test_operators():
     check('function', 'void operator new [  ] ()', 'void operator new[]()')
     check('function', 'void operator delete ()', 'void operator delete()')