BUG#11754894: MYISAMCHK ERROR HAS INCORRECT REFERENCE

              TO 'MYISAM_SORT_BUFFER_SIZE'
Merging from 5.1 to 5.5

storage/myisam/myisamchk.c

@@ -295,7 +295,14 @@ static struct my_option my_long_options[] =
     &check_param.write_buffer_length, 0, GET_ULONG, REQUIRED_ARG,
     (long) READ_BUFFER_INIT, (long) MALLOC_OVERHEAD,
     INT_MAX32, (long) MALLOC_OVERHEAD, (long) 1L, 0},
-  { "sort_buffer_size", OPT_SORT_BUFFER_SIZE, "",
+  { "sort_buffer_size", OPT_SORT_BUFFER_SIZE,
+    "Deprecated. myisam_sort_buffer_size alias is being used",
+    &check_param.sort_buffer_length,
+    &check_param.sort_buffer_length, 0, GET_ULL, REQUIRED_ARG,
+    (long) SORT_BUFFER_INIT, (long) (MIN_SORT_BUFFER + MALLOC_OVERHEAD),
+    SIZE_T_MAX, (long) MALLOC_OVERHEAD, (long) 1L, 0},
+  { "myisam_sort_buffer_size", OPT_SORT_BUFFER_SIZE, 
+    "Alias of sort_buffer_size parameter",
     &check_param.sort_buffer_length,
     &check_param.sort_buffer_length, 0, GET_ULL, REQUIRED_ARG,
     (long) SORT_BUFFER_INIT, (long) (MIN_SORT_BUFFER + MALLOC_OVERHEAD),