mysqld.cc:

  Fixed a typo bug.

sql/mysqld.cc

@@ -4336,7 +4336,7 @@ replicating a LOAD DATA INFILE command.",
    (gptr*) 0,
    0, (enum get_opt_var_type) (GET_ULONG | GET_ASK_ADDR) , REQUIRED_ARG, 100,
    1, 100, 0, 1, 0},
-  {"key_cache_division_age_threshold", OPT_KEY_CACHE_AGE_THRESHOLD,
+  {"key_cache_age_threshold", OPT_KEY_CACHE_AGE_THRESHOLD,
    "This characterizes the number of hits a hot block has to be untouched until it is considered aged enough to be downgraded to a warm block. This specifies the percentage ratio of that number of hits to the total number of blocks in key cache",
    (gptr*) &dflt_key_cache_var.param_age_threshold,
    (gptr*) 0,