ppfrag.cc: commented main programme to avoid duplicate main, so now works with...

ppfrag.cc: commented main programme to avoid duplicate main, so now works with ./configure make and manual

version_54/source/ppfrag.cc

@@ -138,10 +138,11 @@ int test_ppfrag()
 }
 ////////////////////////////////////////////////////
 // test driver, enable to use it
-
+/*  commented out to avoid duplicate main with galpropMain.cc  AWS20200604
 int main()
 {
   test_ppfrag();
   return 0;
 }
+*/