Update runtime files
diff --git a/runtime/doc/textprop.txt b/runtime/doc/textprop.txt
index 6b4c023..d231082 100644
--- a/runtime/doc/textprop.txt
+++ b/runtime/doc/textprop.txt
@@ -171,7 +171,8 @@
the text.
A negative "id" will be chosen and is returned. Once a
property with "text" has been added for a buffer then using a
- negative "id" for any other property will give an error.
+ negative "id" for any other property will give an error:
+ *E1293*
Can also be used as a |method|: >
GetLnum()->prop_add(col, props)