PATCH-P0-HACK-UPSTREAM: Silence compilator about no return

Maintainer: Michal Hrusecky <Michal.Hrusecky@opensuse.org>

Index: sql/sql_plugin.cc
===================================================================
--- sql/sql_plugin.cc.orig
+++ sql/sql_plugin.cc
@@ -3620,6 +3620,7 @@ void plugin_opt_set_limits(struct my_opt
     break;
   default:
     DBUG_ASSERT(0);
+    return false;
   }
   options->arg_type= REQUIRED_ARG;
   if (opt->flags & PLUGIN_VAR_NOCMDARG)