Give a more precise warning why something fails.

Fixed typo that caused warnings from mysql-test-run

mysql-test/mysql-test-run.pl:
  Fixed typo
sql/mysqld.cc:
  Give a more precise warning why something fails.

mysql-test/mysql-test-run.pl

@@ -4228,7 +4228,7 @@ sub extract_warning_lines ($) {
      qr/slave SQL thread aborted/,
      qr/unknown option '--loose[-_]/,
      qr/unknown variable 'loose[-_]/,
-     or/Invalid .*old.* table or database name/,
+     qr/Invalid .*old.* table or database name/,
      qr/Now setting lower_case_table_names to [02]/,
      qr/Setting lower_case_table_names=2/,
      qr/You have forced lower_case_table_names to 0/,

sql/mysqld.cc

@@ -8786,8 +8786,7 @@ mysqld_get_one_option(int optid,
     if (!slave_warning_issued)                 //only show the warning once
     {
       slave_warning_issued = true;   
-      WARN_DEPRECATED(NULL, "6.0", "for replication startup options", 
-        "'CHANGE MASTER'");
+      WARN_DEPRECATED(NULL, "6.0", opt->name, "'CHANGE MASTER'");
     }
     break;
   case OPT_CONSOLE: