Improve browse-url-android-share docstring

* lisp/net/browse-url.el (browse-url-android-share): Clarify that
the option only applies to Android systems.

(cherry picked from commit 5686bb5b428c4a30a8b6d485f364adc7ccf31e73)

diff --git a/lisp/net/browse-url.el b/lisp/net/browse-url.el
index 04316cae58d96492296131250e5e20dc21fb384c..df5886aa383cd1d98896c28282bfe61e8709dc5a 100644 (file)
--- a/lisp/net/browse-url.el
+++ b/lisp/net/browse-url.el
@@ -1401,7 +1401,7 @@ Default to the URL around or before point."
               'browse-url-browser-kind 'external)
 
 (defcustom browse-url-android-share nil
-  "If non-nil, share URLs instead of opening them.
+  "If non-nil, share URLs on Android systems instead of opening them.
 When non-nil, `browse-url-default-android-browser' will try to
 share the URL being browsed through programs such as mail clients
 and instant messengers instead of opening it in a web browser."