Bug#17574 Detect cluster start failure and "fail" ndb_* tests

 - Update for 5.1


mysql-test/mysql-test-run.pl:
  Remove mtr_error call from ndbcluster_install_slave
  Check if ndbcluster_install_slave failed after it's been called. continu with disabled slave cluster if  --force is used.

mysql-test/mysql-test-run.pl

@@ -1563,7 +1563,6 @@ sub ndbcluster_install_slave () {
 		 "--core"],
 		"", "", "", "") )
   {
-    mtr_error("Error ndbcluster_install_slave");
     return 1;
   }
 
@@ -1793,10 +1792,21 @@ sub mysql_install_db () {
 
   if ( ndbcluster_install_slave() )
   {
-    # failed to install, disable usage but flag that its no ok
+    if ( $opt_force)
+    {
+      # failed to install, disable usage and flag that its no ok
+      mtr_report("ndbcluster_install_slave failed, " .
+		 "continuing without slave cluster");
       $opt_with_ndbcluster_slave= 0;
       $flag_ndb_slave_status_ok= 0;
     }
+    else
+    {
+      print "Aborting: Failed to install ndb cluster\n";
+      print "To continue, re-run with '--force'.\n";
+      mtr_exit(1);
+    }
+  }
 
   return 0;
 }