Fixed test failure that ended with "There is no group named 'mysqld.10' that...

Fixed test failure that ended with "There is no group named 'mysqld.10' that can be used to resolve 'port' for test"

mysql-test/lib/My/ConfigFactory.pm:
  Added test name to error output
mysql-test/mysql-test-run.pl:
  Added testname as part of ConfigFactory for better error message
mysql-test/suite/rpl/t/rpl_test_framework.cnf:
  Added space after # to ensure that ConfigFactory treat comments as comments

mysql-test/lib/My/ConfigFactory.pm

@@ -358,7 +358,7 @@ sub post_check_client_group {
 
     if (! defined $option){
       #print $config;
-      croak "Could not get value for '$name_from'";
+      croak "Could not get value for '$name_from' for test $self->{testname}";
     }
     $config->insert($client_group_name, $name_to, $option->value())
   }
@@ -446,7 +446,7 @@ sub resolve_at_variable {
 
   my $from_group= $config->group($group_name)
     or croak "There is no group named '$group_name' that ",
-      "can be used to resolve '$option_name'";
+      "can be used to resolve '$option_name' for test '$self->{testname}'";
 
   my $from= $from_group->value($option_name);
   $config->insert($group->name(), $option->name(), $from)
@@ -623,6 +623,7 @@ sub new_config {
 		   HOSTS        => $hosts,
 		   NEXT_HOST    => 0,
 		   SERVER_ID    => 1,
+                   testname     => $args->{testname},
 		  }, $class;
 
   # add auto-options

mysql-test/mysql-test-run.pl

@@ -3826,6 +3826,7 @@ sub run_testcase ($$) {
       # Generate new config file from template
       $config= My::ConfigFactory->new_config
 	( {
+           testname        => $tinfo->{name},
 	   basedir         => $basedir,
 	   testdir         => $glob_mysql_test_dir,
 	   template_path   => $tinfo->{template_path},

mysql-test/suite/rpl/t/rpl_test_framework.cnf

@@ -17,18 +17,18 @@ log-slave-updates
 log-slave-updates
 [mysqld.9]
 log-slave-updates
-#[mysqld.10]
-#log-slave-updates
-#[mysqld.11]
-#log-slave-updates
-#[mysqld.12]
-#log-slave-updates
-#[mysqld.13]
-#log-slave-updates
-#[mysqld.14]
-#log-slave-updates
-#[mysqld.15]
-#log-slave-updates
+# [mysqld.10]
+# log-slave-updates
+# [mysqld.11]
+# log-slave-updates
+# [mysqld.12]
+# log-slave-updates
+# [mysqld.13]
+# log-slave-updates
+# [mysqld.14]
+# log-slave-updates
+# [mysqld.15]
+# log-slave-updates
 
 [ENV]
 SERVER_MYPORT_3= @mysqld.3.port
@@ -38,9 +38,9 @@ SERVER_MYPORT_6= @mysqld.6.port
 SERVER_MYPORT_7= @mysqld.7.port
 SERVER_MYPORT_8= @mysqld.8.port
 SERVER_MYPORT_9= @mysqld.9.port
-#SERVER_MYPORT_10= @mysqld.10.port
-#SERVER_MYPORT_11= @mysqld.11.port
-#SERVER_MYPORT_12= @mysqld.12.port
-#SERVER_MYPORT_13= @mysqld.13.port
-#SERVER_MYPORT_14= @mysqld.14.port
-#SERVER_MYPORT_15= @mysqld.15.port
+# SERVER_MYPORT_10= @mysqld.10.port
+# SERVER_MYPORT_11= @mysqld.11.port
+# SERVER_MYPORT_12= @mysqld.12.port
+# SERVER_MYPORT_13= @mysqld.13.port
+# SERVER_MYPORT_14= @mysqld.14.port
+# SERVER_MYPORT_15= @mysqld.15.port