patch 8.2.2415: no way to check for the cmdwin feature
Problem: No way to check for the cmdwin feature, cmdline_hist is now always
enabled.
Solution: Add has('cmdwin') support. Skip arglist test on Windows
temporarily.
diff --git a/runtime/doc/cmdline.txt b/runtime/doc/cmdline.txt
index 990380f..efb1400 100644
--- a/runtime/doc/cmdline.txt
+++ b/runtime/doc/cmdline.txt
@@ -1096,7 +1096,7 @@
In the command-line window the command line can be edited just like editing
text in any window. It is a special kind of window, because you cannot leave
it in a normal way.
-{not available when compiled without the |+cmdline_hist| feature}
+{not available when compiled without the |+cmdwin| feature}
OPEN *c_CTRL-F* *q:* *q/* *q?*