- The table_priv column of table_privs table was altered to a enum type
   with fewer enums causing the SHOW/CREATE VIEW grants to be truncated.
 - Improved comments and moved all declarations for table_privs, column_privs
   and proc_privs to one section for each table making it easy to see hat alterations
   are performed on each table
 - Reduced the number of ALTER's slightly, but as this is an upgrade script we need
   to take all possibilites into account.


scripts/mysql_fix_privilege_tables.sql:
  Collect everything for tables_priv, columns_priv and procs_priv in one section for each table
  Remove duplicate ALTERS
  Remove the ALTERS that truncated "SHOW VIEW" and "CREATE VIEW" from
  the enum type for Table_priv.
mysql-test/r/fix_priv_tables.result:
  New BitKeeper file ``mysql-test/r/fix_priv_tables.result''
mysql-test/r/fix_priv_tabs.result:
  New BitKeeper file ``mysql-test/r/fix_priv_tabs.result''
mysql-test/t/fix_priv_tables.test:
  New BitKeeper file ``mysql-test/t/fix_priv_tables.test''