Fixed that --apply-slave-statements also uses multi-source

mysql-test/r/rpl_mysqldump_slave.result:
  Updated test result

client/mysqldump.c

@@ -4826,10 +4826,10 @@ static int add_stop_slave(void)
   if (opt_comments)
     fprintf(md_result_file,
             "\n--\n-- stop slave statement to make a recovery dump)\n--\n\n");
+  if (multi_source)
+    fprintf(md_result_file, "STOP ALL SLAVES;\n");
+  else
     fprintf(md_result_file, "STOP SLAVE;\n");
-#ifdef WHEN_55_CAN_HANDLE_LONG_VERSION_STRINGS
-  fprintf(md_result_file, "/*M!100000 STOP ALL SLAVES */;\n");
-#endif
   return(0);
 }
 
@@ -4838,6 +4838,9 @@ static int add_slave_statements(void)
   if (opt_comments)
     fprintf(md_result_file,
             "\n--\n-- start slave statement to make a recovery dump)\n--\n\n");
+  if (multi_source)
+    fprintf(md_result_file, "START ALL SLAVES;\n");
+  else
     fprintf(md_result_file, "START SLAVE;\n");
   return(0);
 }

mysql-test/r/rpl_mysqldump_slave.result

@@ -5,10 +5,10 @@ include/master-slave.inc
 #
 use test;
 CHANGE MASTER "" TO MASTER_LOG_FILE='master-bin.000001', MASTER_LOG_POS=BINLOG_START;
-STOP SLAVE;
+STOP ALL SLAVES;
 CHANGE MASTER "" TO MASTER_LOG_FILE='master-bin.000001', MASTER_LOG_POS=BINLOG_START;
-START SLAVE;
-STOP SLAVE;
+START ALL SLAVES;
+STOP ALL SLAVES;
 CHANGE MASTER "" TO MASTER_HOST='127.0.0.1', MASTER_PORT=MASTER_MYPORT, MASTER_LOG_FILE='master-bin.000001', MASTER_LOG_POS=BINLOG_START;
-START SLAVE;
+START ALL SLAVES;
 include/rpl_end.inc