Mismerge broken 5.1-runtime compilation because do_command was defined

static but it's still used by another compilation unit.

Remove static qualifier from do_command definition.

sql/sql_parse.cc

@@ -650,7 +650,7 @@ int end_trans(THD *thd, enum enum_mysql_completiontype completion)
     1  request of thread shutdown (see dispatch_command() description)
 */
 
-static bool do_command(THD *thd)
+bool do_command(THD *thd)
 {
   char *packet= 0;
   ulong packet_length;