Update runtime files. Remove duplicate tags in help.
diff --git a/runtime/doc/spell.txt b/runtime/doc/spell.txt
index 5c76eb5..f6ba457 100644
--- a/runtime/doc/spell.txt
+++ b/runtime/doc/spell.txt
@@ -1,4 +1,4 @@
-*spell.txt* For Vim version 7.3. Last change: 2011 May 25
+*spell.txt* For Vim version 7.3. Last change: 2013 Jun 26
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -928,9 +928,13 @@
Vim allows you to use spell checking for several languages in the same file.
You can list them in the 'spelllang' option. As a consequence all spell files
for the same encoding must use the same word characters, otherwise they can't
-be combined without errors. If you get a warning that the word tables differ
-you may need to generate the .spl file again with |:mkspell|. Check the FOL,
-LOW and UPP lines in the used .aff file.
+be combined without errors.
+
+If you get an E763 warning that the word tables differ you need to update your
+".spl" spell files. If you downloaded the files, get the latest version of
+all spell files you use. Otherwise generate the .spl file again with
+|:mkspell|. If you still get errors check the FOL, LOW and UPP lines in the
+used .aff files.
The XX.ascii.spl spell file generated with the "-ascii" argument will not
contain the table with characters, so that it can be combine with spell files