patch 9.0.0279: the tiny version has the popup menu but not 'wildmenu'

Problem:    The tiny version has the popup menu but not 'wildmenu'.
Solution:   Graduate the wildmenu feature.
diff --git a/runtime/doc/various.txt b/runtime/doc/various.txt
index 528901d..1ba5e04 100644
--- a/runtime/doc/various.txt
+++ b/runtime/doc/various.txt
@@ -491,7 +491,7 @@
 T  *+vreplace*		|gR| and |gr|
    *+vtp*		on MS-Windows console: support for 'termguicolors'
 T  *+wildignore*	|'wildignore'|  Always enabled since 9.0.0278
-N  *+wildmenu*		|'wildmenu'|
+T  *+wildmenu*		|'wildmenu'||  Always enabled since 9.0.0279
 T  *+windows*		more than one window; Always enabled since 8.0.1118.
 m  *+writebackup*	|'writebackup'| is default on
 m  *+xim*		X input method |xim|