Fix extension of filename in comments in examples

Examples/c/std_vector/example.cxx

@@ -1,2 +1,2 @@
-/* File : example.c */
+/* File : example.cxx */
 

Examples/javascript/enum/example.cxx

@@ -1,4 +1,4 @@
-/* File : example.c */
+/* File : example.cxx */
 
 #include "example.h"
 #include <stdio.h>

Examples/lua/owner/example.cxx

@@ -1,4 +1,4 @@
-/* File : example.c */
+/* File : example.cxx */
 
 #include "example.h"
 #include <stdio.h>

Examples/octave/enum/example.cxx

@@ -1,4 +1,4 @@
-/* File : example.c */
+/* File : example.cxx */
 
 #include "example.h"
 #include <stdio.h>

Examples/php/disown/example.cxx

@@ -1,4 +1,4 @@
-/* File : example.c */
+/* File : example.cxx */
 
 #include "example.h"
 #include <math.h>

Examples/php/overloading/example.cxx

@@ -1,4 +1,4 @@
-/* File : example.c */
+/* File : example.cxx */
 
 #include "example.h"
 #include <math.h>

Examples/php/proxy/example.cxx

@@ -1,4 +1,4 @@
-/* File : example.c */
+/* File : example.cxx */
 
 #include "example.h"
 #include <math.h>

Examples/python/enum/example.cxx

@@ -1,4 +1,4 @@
-/* File : example.c */
+/* File : example.cxx */
 
 #include "example.h"
 #include <stdio.h>

Examples/python/smartptr/example.cxx

@@ -1,4 +1,4 @@
-/* File : example.c */
+/* File : example.cxx */
 
 #include "example.h"
 #include <math.h>

Examples/ruby/enum/example.cxx

@@ -1,4 +1,4 @@
-/* File : example.c */
+/* File : example.cxx */
 
 #include "example.h"
 #include <stdio.h>

Examples/scilab/enum/example.cxx

@@ -1,4 +1,4 @@
-/* File : example.c */
+/* File : example.cxx */
 
 #include "example.h"
 #include <stdio.h>

Examples/tcl/enum/example.cxx

@@ -1,4 +1,4 @@
-/* File : example.c */
+/* File : example.cxx */
 
 #include "example.h"
 #include <stdio.h>