MDEV-11345 Compile english error messages into mysqld executable.

Simplify loading messages into mariabackup. Do the same as server does
We're forcing english, so there is no attempt to load errmsg.sys

extra/mariabackup/xtrabackup.cc

@@ -102,6 +102,7 @@ Street, Fifth Floor, Boston, MA 02110-1335 USA
 #include <srv0srv.h>
 #include <crc_glue.h>
 #include <log.h>
+#include <derror.h>
 
 int sys_var_init();
 
@@ -5914,41 +5915,12 @@ extern void init_signals(void);
 
 #include <sql_locale.h>
 
-/* Messages . Avoid loading errmsg.sys file */
+
 void setup_error_messages()
 {
-  static const char *my_msgs[ERRORS_PER_RANGE];
-  static const char **all_msgs[] = { my_msgs, my_msgs, my_msgs, my_msgs };
   my_default_lc_messages = &my_locale_en_US;
-  my_default_lc_messages->errmsgs->errmsgs = all_msgs;
-
-  /* Populate the necessary error messages */
-  struct {
-    int id;
-    const char *fmt;
-  }
-  xb_msgs[] =
-  {
-  { ER_DATABASE_NAME,"Database" },
-  { ER_TABLE_NAME,"Table"},
-  { ER_PARTITION_NAME, "Partition" },
-  { ER_SUBPARTITION_NAME, "Subpartition" },
-  { ER_TEMPORARY_NAME, "Temporary"},
-  { ER_RENAMED_NAME, "Renamed"},
-  { ER_CANT_FIND_DL_ENTRY, "Can't find symbol '%-.128s' in library"},
-  { ER_CANT_OPEN_LIBRARY, "Can't open shared library '%-.192s' (errno: %d, %-.128s)" },
-  { ER_OUTOFMEMORY, "Out of memory; restart server and try again (needed %d bytes)" },
-  { ER_CANT_OPEN_LIBRARY, "Can't open shared library '%-.192s' (errno: %d, %-.128s)" },
-  { ER_UDF_NO_PATHS, "No paths allowed for shared library" },
-  { ER_CANT_INITIALIZE_UDF,"Can't initialize function '%-.192s'; %-.80s"},
-  { ER_PLUGIN_IS_NOT_LOADED,"Plugin '%-.192s' is not loaded" }
-  };
-
-  for (int i = 0; i < (int)array_elements(all_msgs); i++)
-    all_msgs[0][i] = "Unknown error";
-
-  for (int i = 0; i < (int)array_elements(xb_msgs); i++)
-    all_msgs[0][xb_msgs[i].id - ER_ERROR_FIRST] = xb_msgs[i].fmt;
+	if (init_errmessage())
+	  die("could not initialize error messages");
 }
 
 void
@@ -6220,6 +6192,8 @@ int main(int argc, char **argv)
 		(void) pthread_key_delete(THR_THD);
 
 	logger.cleanup_base();
+	cleanup_errmsgs();
+	free_error_messages();
 	mysql_mutex_destroy(&LOCK_error_log);
 
 	if (status == EXIT_SUCCESS) {