Updated runtime files.
diff --git a/runtime/doc/sign.txt b/runtime/doc/sign.txt
index 6c92073..fcc6435 100644
--- a/runtime/doc/sign.txt
+++ b/runtime/doc/sign.txt
@@ -1,4 +1,4 @@
-*sign.txt* For Vim version 7.4. Last change: 2014 May 07
+*sign.txt* For Vim version 7.4. Last change: 2016 Aug 12
VIM REFERENCE MANUAL by Gordon Prieur
@@ -45,8 +45,10 @@
When signs are defined for a file, Vim will automatically add a column of two
characters to display them in. When the last sign is unplaced the column
-disappears again. The color of the column is set with the SignColumn group
-|hl-SignColumn|. Example to set the color: >
+disappears again. This behavior can be changed with the 'signcolumn' option.
+
+The color of the column is set with the SignColumn group |hl-SignColumn|.
+Example to set the color: >
:highlight SignColumn guibg=darkgrey