mysqld.cc:

  Typos/grammar.

sql/mysqld.cc

@@ -5124,7 +5124,7 @@ The minimum value for this variable is 4096.",
     (gptr*) &opt_date_time_formats[MYSQL_TIMESTAMP_TIME],
     0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0},
   {"sql_updatable_view_key", OPT_SQL_UPDATABLE_VIEW_KEY,
-   "0 = NO = Don't check presence of key in updateable VIEW. 1 = YES = Prohibit update of VIEW which do not contain key of underlaying table. 2 = LIMIT1 = Same as YES but prohibited only operation with LIMIT 1 (usually get from GUI tools).",
+   "0 = NO = Don't check presence of key in updatable VIEW. 1 = YES = Prohibit update of VIEW which does not contain key of underlying table. 2 = LIMIT1 = Same as YES but prohibited only operation with LIMIT 1 (usually get from GUI tools).",
    (gptr*) &global_system_variables.sql_updatable_view_key,
    (gptr*) &max_system_variables.sql_updatable_view_key,
    0, GET_ULONG, REQUIRED_ARG, 1, 0, 2, 0, 1, 0},