diff --git a/7.3.141 b/7.3.141
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+To: vim_dev@googlegroups.com
+Subject: Patch 7.3.141
+Fcc: outbox
+From: Bram Moolenaar <Bram@moolenaar.net>
+Mime-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+------------
+
+Patch 7.3.141
+Problem:    When a key code is not set get a confusing error message.
+Solution:   Change the error message to say the key code is not set.
+Files:	    src/option.c, runtime/doc/options.txt
+
+
+*** ../vim-7.3.140/src/option.c	2011-01-22 00:11:42.000000000 +0100
+--- src/option.c	2011-03-22 14:25:52.000000000 +0100
+***************
+*** 4352,4358 ****
+  		    p = find_termcode(key_name);
+  		    if (p == NULL)
+  		    {
+! 			errmsg = (char_u *)N_("E518: Unknown option");
+  			goto skip;
+  		    }
+  		    else
+--- 4352,4358 ----
+  		    p = find_termcode(key_name);
+  		    if (p == NULL)
+  		    {
+! 			errmsg = (char_u *)N_("E846: Key code not set");
+  			goto skip;
+  		    }
+  		    else
+***************
+*** 4700,4707 ****
+  						|| s[i] == ','
+  						|| s[i] == NUL))
+  					break;
+! 				    /* Count backspaces.  Only a comma with an
+! 				     * even number of backspaces before it is
+  				     * recognized as a separator */
+  				    if (s > origval && s[-1] == '\\')
+  					++bs;
+--- 4700,4707 ----
+  						|| s[i] == ','
+  						|| s[i] == NUL))
+  					break;
+! 				    /* Count backslashes.  Only a comma with an
+! 				     * even number of backslashes before it is
+  				     * recognized as a separator */
+  				    if (s > origval && s[-1] == '\\')
+  					++bs;
+*** ../vim-7.3.140/runtime/doc/options.txt	2010-12-02 21:43:10.000000000 +0100
+--- runtime/doc/options.txt	2011-03-22 14:32:14.000000000 +0100
+***************
+*** 150,155 ****
+--- 150,167 ----
+  (the ^[ is a real <Esc> here, use CTRL-V <Esc> to enter it)
+  The advantage over a mapping is that it works in all situations.
+  
++ You can define any key codes, e.g.: >
++ 	:set t_xy=^[foo;
++ There is no warning for using a name that isn't recognized.  You can map these
++ codes as you like: >
++ 	:map <t_xy> something
++ <								*E846*
++ When a key code is not set, it's like it does not exist.  Trying to get its
++ value will result in an error: >
++ 	:set t_kb=
++ 	:set t_kb
++ 	E846: Key code not set: t_kb
++ 
+  The t_xx options cannot be set from a |modeline| or in the |sandbox|, for
+  security reasons.
+  
+*** ../vim-7.3.140/src/version.c	2011-03-22 13:29:20.000000000 +0100
+--- src/version.c	2011-03-22 14:32:59.000000000 +0100
+***************
+*** 716,717 ****
+--- 716,719 ----
+  {   /* Add new patch number below this line */
++ /**/
++     141,
+  /**/
+
+-- 
+"I know that there are people who don't love their fellow man,
+and I hate those people!" - Tom Lehrer
+
+ /// Bram Moolenaar -- Bram@Moolenaar.net -- http://www.Moolenaar.net   \\\
+///        sponsor Vim, vote for features -- http://www.Vim.org/sponsor/ \\\
+\\\  an exciting new programming language -- http://www.Zimbu.org        ///
+ \\\            help me help AIDS victims -- http://ICCF-Holland.org    ///