Updated runtime files and translations.
diff --git a/runtime/doc/syntax.txt b/runtime/doc/syntax.txt
index d56cc34..212aa77 100644
--- a/runtime/doc/syntax.txt
+++ b/runtime/doc/syntax.txt
@@ -1,4 +1,4 @@
-*syntax.txt* For Vim version 7.3. Last change: 2010 Dec 08
+*syntax.txt* For Vim version 7.3. Last change: 2011 Jan 22
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -3267,11 +3267,12 @@
in this way when they have their own highlighting via "matchgroup"
cchar *:syn-cchar*
-
+ *E844*
The "cchar" argument defines the character shown in place of the item
when it is concealed (setting "cchar" only makes sense when the conceal
argument is given.) If "cchar" is not set then the default conceal
-character defined in the 'listchars' option is used. Example: >
+character defined in the 'listchars' option is used. The character cannot be
+a control character such as Tab. Example: >
:syntax match Entity "&" conceal cchar=&
See |hl-Conceal| for highlighting.