vis: more informative error message for :set option

Close #433

1 files changed, 1 insertions, 1 deletions

diff --git a/vis-cmds.c b/vis-cmds.c
index a220c33..bf811da 100644
--- a/vis-cmds.c
+++ b/vis-cmds.c
@@ -93,7 +93,7 @@ static bool cmd_set(Vis *vis, Win *win, Command *cmd, const char *argv[], Cursor
 	}
 
 	if (!win && (opt->flags & OPTION_FLAG_WINDOW)) {
-		vis_info_show(vis, "Need active window for :set command");
+		vis_info_show(vis, "Need active window for :set %s", argv[1]);
 		return false;
 	}