Add missing ; after C++ class definitions

Doc/Manual/Python.html

@@ -3404,7 +3404,7 @@ def bar(*args):
 class Foo {
 public:
     int bar(int x);
-}
+};
 </pre>
 </div>
 
@@ -3441,7 +3441,7 @@ proxy, just before the return statement.
 class Foo {
 public:
     int bar(int x);
-}
+};
 </pre>
 </div>
 
@@ -3470,7 +3470,7 @@ SWIG version 1.3.28 you can use the directive forms
 class Foo {
 public:
     int bar(int x);
-}
+};
 </pre>
 </div>
 
@@ -3500,7 +3500,7 @@ class Foo {
 public:
     int bar(int x);
     int bar();
-}
+};
 </pre>
 </div>