patch 8.1.1887: the +cmdline_compl feature is not in the tiny version

Problem:    The +cmdline_compl feature is not in the tiny version.
Solution:   Graduate the +cmdline_compl feature.
diff --git a/runtime/doc/cmdline.txt b/runtime/doc/cmdline.txt
index f7a3ee1..95686cf 100644
--- a/runtime/doc/cmdline.txt
+++ b/runtime/doc/cmdline.txt
@@ -1,4 +1,4 @@
-*cmdline.txt*   For Vim version 8.1.  Last change: 2019 Aug 06
+*cmdline.txt*   For Vim version 8.1.  Last change: 2019 Aug 18
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -380,10 +380,8 @@
 - Mappings: Only after a ":map" or similar command.
 - Variable and function names: Only after a ":if", ":call" or similar command.
 
-When Vim was compiled without the |+cmdline_compl| feature only file names,
-directories and help items can be completed.  The number of help item matches
-is limited (currently to 300) to avoid a long delay when there are very many
-matches.
+The number of help item matches is limited (currently to 300) to avoid a long
+delay when there are very many matches.
 
 These are the commands that can be used: