Remove extra colon from print dump in Python binding materials

python-bindings/overview_article/cmult.c

@@ -4,7 +4,7 @@
 
 float cmult(int int_param, float float_param) {
     float return_value = int_param * float_param;
-    printf("    In cmult : int: %d float %.1f returning  %.1f\n", int_param,
+    printf("    In cmult : int %d float %.1f returning  %.1f\n", int_param,
             float_param, return_value);
     return return_value;
 }

python-bindings/overview_article/cppmult.cpp

@@ -6,7 +6,7 @@
 float cppmult(int int_param, float float_param) {
     float return_value = int_param * float_param;
     std::cout << std::setprecision(1) << std::fixed
-	          << "    In cppmul: int: " << int_param
+	          << "    In cppmul: int " << int_param
 	          << " float " <<  float_param
 	          << " returning  " << return_value
 	          << std::endl;