Update runtime files.
diff --git a/runtime/doc/sign.txt b/runtime/doc/sign.txt
index 7b33a2d..4886f74 100644
--- a/runtime/doc/sign.txt
+++ b/runtime/doc/sign.txt
@@ -1,4 +1,4 @@
-*sign.txt* For Vim version 8.1. Last change: 2019 Jan 06
+*sign.txt* For Vim version 8.1. Last change: 2019 Jan 17
VIM REFERENCE MANUAL by Gordon Prieur
@@ -31,7 +31,7 @@
Signs and highlights are not useful just for debuggers. Sun's Visual
WorkShop uses signs and highlights to mark build errors and SourceBrowser
hits. Additionally, the debugger supports 8 to 10 different signs and
-highlight colors. |workshop| Same for Netbeans |netbeans|.
+highlight colors, see |NetBeans|.
There are two steps in using signs:
@@ -43,6 +43,7 @@
displayed. A defined sign can be placed several times in different lines
and files.
+ *sign-column*
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. This behavior can be changed with the 'signcolumn' option.
@@ -55,7 +56,7 @@
*sign-identifier*
Each placed sign is identified by a number called the sign identifier. This
identifier is used to jump to the sign or to remove the sign. The identifier
-is assigned when placing the sign using the |sign-place| command or the
+is assigned when placing the sign using the |:sign-place| command or the
|sign_place()| function. Each sign identifier should be a unique number. If
multiple placed signs use the same identifier, then jumping to or removing a
sign becomes unpredictable. To avoid overlapping identifiers, sign groups can
@@ -76,6 +77,10 @@
independent of the sign group. The default priority for a sign is 10. The
priority is assigned at the time of placing a sign.
+When the line on which the sign is placed is deleted, the sign is moved to the
+next line (or the last line of the buffer, if there is no next line). When
+the delete is undone the sign does not move back.
+
==============================================================================
2. Commands *sign-commands* *:sig* *:sign*