Fixed wrong arguments to printf and related functions

Other things, mainly to get
create_mysqld_error_find_printf_error tool to work:

- Added protection to not include mysqld_error.h twice
- Include "unireg.h" instead of "mysqld_error.h" in server
- Added protection if ER_XX messages are already defined
- Removed wrong calls to my_error(ER_OUTOFMEMORY) as
  my_malloc() and my_alloc will do this automatically
- Added missing %s to ER_DUP_QUERY_NAME
- Removed old and wrong calls to my_strerror() when using
  MY_ERROR_ON_RENAME (wrong merge)
- Fixed deadlock error message from Galera. Before the extra
  information given to ER_LOCK_DEADLOCK was missing because
  ER_LOCK_DEADLOCK doesn't provide any extra information.

I kept #ifdef mysqld_error_find_printf_error_used in sql_acl.h
to make it easy to do this kind of check again in the future

sql/opt_range.cc

@@ -10241,8 +10241,8 @@ void SEL_ARG::test_use_count(SEL_ARG *root)
       ulong count=count_key_part_usage(root,pos->next_key_part);
       if (count > pos->next_key_part->use_count)
       {
-        sql_print_information("Use_count: Wrong count for key at %p, %lu "
-                              "should be %lu", (long unsigned int)pos,
+        sql_print_information("Use_count: Wrong count for key at %p: %lu "
+                              "should be %lu", pos,
                               pos->next_key_part->use_count, count);
 	return;
       }
@@ -10251,7 +10251,7 @@ void SEL_ARG::test_use_count(SEL_ARG *root)
   }
   if (e_count != elements)
     sql_print_warning("Wrong use count: %u (should be %u) for tree at %p",
-                      e_count, elements, (long unsigned int) this);
+                      e_count, elements, this);
 }
 #endif