Escape translated text in 'beds' mod formspec

mods/beds/init.lua

@@ -2,7 +2,7 @@
 
 -- Load support for MT game translation.
 local S = minetest.get_translator("beds")
-
+local esc = minetest.formspec_escape
 
 beds = {}
 beds.player = {}
@@ -14,7 +14,7 @@ beds.get_translator = S
 beds.formspec = "size[8,11;true]" ..
 	"no_prepend[]" ..
 	"bgcolor[#080808BB;true]" ..
-	"button_exit[2,10;4,0.75;leave;" .. S("Leave Bed") .. "]"
+	"button_exit[2,10;4,0.75;leave;" .. esc(S("Leave Bed")) .. "]"
 
 local modpath = minetest.get_modpath("beds")