Fixed a couple of tests

There was some "return 1". Now that exit code is checked, this would
have triggered an error

regtest/basic/rt-make-4/main.cpp

@@ -40,5 +40,5 @@ int main () {
   }
   out.close();
 
-  return 1;
+  return 0;
 }

regtest/basic/rt65-rmsd2/test.cpp

@@ -614,5 +614,5 @@ int main(int argc, char* argv[]) {
   } 
 
 
-  return 1;
+  return 0;
 }