Updated runtime files.
diff --git a/runtime/doc/insert.txt b/runtime/doc/insert.txt
index 2a114bc..45dc58e 100644
--- a/runtime/doc/insert.txt
+++ b/runtime/doc/insert.txt
@@ -1,4 +1,4 @@
-*insert.txt* For Vim version 7.4. Last change: 2014 Aug 04
+*insert.txt* For Vim version 7.4. Last change: 2015 May 22
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -81,9 +81,11 @@
joining lines). See the section "word motions",
|word-motions|, for the definition of a word.
*i_CTRL-U*
-CTRL-U Delete all entered characters in the current line (see
- |i_backspacing| about joining lines).
-
+CTRL-U Delete all entered characters before the cursor in the current
+ line. If there are no newly entereed characters and
+ 'backspace'is not empty, delete all characters before the
+ cursor in the current line.
+ See |i_backspacing| about joining lines.
*i_CTRL-I* *i_<Tab>* *i_Tab*
<Tab> or CTRL-I Insert a tab. If the 'expandtab' option is on, the
equivalent number of spaces is inserted (use CTRL-V <Tab> to