Small fixes in mysql and myisamchk.

client/mysql.cc:
  Small information add to mysql internal help command.
myisam/myisamchk.c:
  Fixed a few typos reported by Paul DuBois.

client/mysql.cc

@@ -40,7 +40,7 @@
 #include <signal.h>
 #include <violite.h>
 
-const char *VER= "12.11";
+const char *VER= "12.12";
 
 /* Don't try to make a nice table if the data is too big */
 #define MAX_COLUMN_LENGTH	     1024
@@ -1319,7 +1319,9 @@ com_help (String *buffer __attribute__((unused)),
 {
   reg1 int i;
 
-  put_info("\nMySQL commands:",INFO_INFO);
+  put_info("\nFull documentation of MySQL is available at\nhttp://www.mysql.com/documentation/mysql/bychapter/\n", INFO_INFO);
+  put_info("For technical support contracts, visit https://order.mysql.com/\n", INFO_INFO);
+  put_info("MySQL commands:",INFO_INFO);
   if (!named_cmds)
     put_info("Note that all text commands must be first on line and end with ';'",INFO_INFO);
   for (i = 0; commands[i].name; i++)

myisam/myisamchk.c

@@ -209,7 +209,7 @@ static struct my_option my_long_options[] =
    (gptr*) &check_param.keys_in_use,
    0, GET_ULL, REQUIRED_ARG, -1, 0, 0, 0, 0, 0},
   {"medium-check", 'm',
-   "Faster than extended-check, but only finds 99.99% of all errors. Should be good enough for most cases.",
+   "Faster than extend-check, but only finds 99.99% of all errors. Should be good enough for most cases.",
    0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
   {"quick", 'q', "Faster repair by not modifying the data file.",
    0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
@@ -360,7 +360,7 @@ static void usage(void)
   -f, --force         Restart with '-r' if there are any errors in the table.\n\
 		      States will be updated as with '--update-state'\n\
   -i, --information   Print statistics information about table that is checked\n\
-  -m, --medium-check  Faster than extended-check, but only finds 99.99% of\n\
+  -m, --medium-check  Faster than extend-check, but only finds 99.99% of\n\
 		      all errors.  Should be good enough for most cases\n\
   -U  --update-state  Mark tables as crashed if you find any errors\n\
   -T, --read-only     Don't mark table as checked\n");