Improved the function upvalue situation margially.

function.lua

@@ -361,8 +361,14 @@ return function (value, display, l, format_value)
     -- upvalues
     if info.nups > 0 and (not info.builtin and not info.docs) then
         l[#l+1] = indent
-        l[#l+1] = '-- Up values:   '
-        format_value(info.ups, DISPLAY.INLINE, l)
+        l[#l+1] = '-- Up values:'
+        for up_name, up_value in pairs(info.ups) do
+	        l[#l+1] = indent
+	        l[#l+1] = '--   '
+	        l[#l+1] = up_name
+	        l[#l+1] = ' = '
+			format_value(up_value, DISPLAY.HIDE, l)
+		end
     end
 
 	-- Ignore spacing and function body if it's a Λ string.