Update runtime files.
diff --git a/runtime/doc/textprop.txt b/runtime/doc/textprop.txt
index 72e70c4..135db02 100644
--- a/runtime/doc/textprop.txt
+++ b/runtime/doc/textprop.txt
@@ -1,4 +1,4 @@
-*textprop.txt* For Vim version 8.1. Last change: 2018 Dec 14
+*textprop.txt* For Vim version 8.1. Last change: 2018 Dec 27
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -103,11 +103,11 @@
Manipulating text properties:
prop_add({lnum}, {col}, {props}) add a text property
-prop_clear({lnum} [, {lnum_end} [, {bufnr}]])
+prop_clear({lnum} [, {lnum-end} [, {bufnr}]])
remove all text properties
prop_find({props} [, {direction}]) search for a text property
prop_list({lnum} [, {props}) text properties in {lnum}
-prop_remove({props} [, {lnum} [, {lnum_end}]])
+prop_remove({props} [, {lnum} [, {lnum-end}]])
remove a text property