commit 47f9af782fce9aaf472c3d624094a58cac24c267
from: Omar Polo <op@omarpolo.com>
date: Sat Aug 14 20:15:58 2021 UTC

change only the title, not the icon too

	ESC]0;stringBEL -- Set icon name and window title to string
	ESC]1;stringBEL -- Set icon name to string
	ESC]2;stringBEL -- Set window title to string

via https://tldp.org/HOWTO/Xterm-Title-3.html

commit - a37d1a1c5a31a55446ae3f647aa2dfd9d27babd4
commit + 47f9af782fce9aaf472c3d624094a58cac24c267
blob - 878802ee8a3c2c9cfb3f230b6213df55d25d10e3
blob + 74418030e8c0876058277924bc327014757d0d5d
--- ui.c
+++ ui.c
@@ -894,7 +894,7 @@ redraw_tab(struct tab *tab)
 	doupdate();
 
 	if (set_title)
-		dprintf(1, "\033]0;%s - Telescope\a",
+		dprintf(1, "\033]2;%s - Telescope\a",
 		    current_tab->buffer.page.title);
 }