Update runtime files.
diff --git a/runtime/doc/eval.txt b/runtime/doc/eval.txt
index 9a8fbad..7dd3412 100644
--- a/runtime/doc/eval.txt
+++ b/runtime/doc/eval.txt
@@ -1,4 +1,4 @@
-*eval.txt* For Vim version 7.4b. Last change: 2013 Jun 11
+*eval.txt* For Vim version 7.4b. Last change: 2013 Aug 03
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -5884,6 +5884,9 @@
< To make the result more system-independent, the shell output
is filtered to replace <CR> with <NL> for Macintosh, and
<CR><NL> with <NL> for DOS-like systems.
+ To avoid the string being truncated at a NUL, all NUL
+ characters are replaced with SOH (0x01).
+
The command executed is constructed using several options:
'shell' 'shellcmdflag' 'shellxquote' {expr} 'shellredir' {tmp} 'shellxquote'
({tmp} is an automatically generated file name).