updated for version 7.3.631
Problem: Cannot complete user names.
Solution: Add user name completion. (Dominique Pelle)
diff --git a/runtime/doc/map.txt b/runtime/doc/map.txt
index b4b77de..59c661d 100644
--- a/runtime/doc/map.txt
+++ b/runtime/doc/map.txt
@@ -1244,6 +1244,7 @@
-complete=syntax syntax file names |'syntax'|
-complete=tag tags
-complete=tag_listfiles tags, file names are shown when CTRL-D is hit
+ -complete=user user names
-complete=var user variables
-complete=custom,{func} custom completion, defined via {func}
-complete=customlist,{func} custom completion, defined via {func}