- Added new type GET_STRALC to my_getopt.

- Fixed some bugs, wrongly freed pointers, in some clients.
- Removed unneccessary code.
- Fixed some other minor bugs and added some options into
  variables category, which had accidently been left out earlier.


client/mysql.cc:
  Fixed some wrong freed pointers. Removed unneccessary code.
  Changed some types from GET_STR to GET_STRALC.
client/mysqladmin.c:
  Fixed some wrong freed pointers. Removed unneccessary code.
  Changed some types from GET_STR to GET_STRALC.
client/mysqlcheck.c:
  Fixed some wrong freed pointers. Removed unneccessary code.
  Changed some types from GET_STR to GET_STRALC.
client/mysqldump.c:
  Fixed some wrong freed pointers. Removed unneccessary code.
  Changed some types from GET_STR to GET_STRALC.
client/mysqlimport.c:
  Removed unneccessary code.
  Fixed a bug in option --ignore-lines
client/mysqlshow.c:
  Removed unneccessary code.
include/my_getopt.h:
  Added new type, GET_STRALC. The name stands for GET STRING ALLOC,
  which means that the struct member value and u_max_value are
  strings that must be alloced and freed when used.
  The normal GET_STR works similarly otherwise, except that it's
  arguments are just pointers to strings, not alloced ones.
mysys/my_getopt.c:
  Added support for GET_STRALC

client/mysqlshow.c

@@ -16,7 +16,7 @@
 
 /* Show databases, tables or columns */
 
-#define SHOW_VERSION "9.1"
+#define SHOW_VERSION "9.2"
 
 #include <my_global.h>
 #include "client_priv.h"
@@ -198,15 +198,9 @@ get_one_option(int optid, const struct my_option *opt __attribute__((unused)),
 	       char *argument)
 {
   switch(optid) {
-  case 'c':
-    charsets_dir= argument;
-    break;
   case 'v':
     opt_verbose++;
     break;
-  case 'h':
-    host = argument;
-    break;
   case 'p':
     if (argument)
     {
@@ -220,17 +214,6 @@ get_one_option(int optid, const struct my_option *opt __attribute__((unused)),
     else
       tty_password=1;
     break;
-#ifndef DONT_ALLOW_USER_CHANGE
-  case 'u':
-    user=argument;
-    break;
-#endif
-  case 'P':
-    opt_mysql_port= (unsigned int) atoi(argument);
-    break;
-  case 'S':
-    opt_mysql_unix_port= argument;
-    break;
   case 'W':
 #ifdef __WIN__
     opt_mysql_unix_port=MYSQL_NAMEDPIPE;