fish_indent type -a's function output and colorize

Doesn't colorize if output is redirected.
This is "fun" and indenting happens to make most of the included
functions display more narrow and fit better into a terminal window.

share/functions/type.fish

@@ -88,8 +88,11 @@ function type --description "Print the type of a command"
 				switch $mode
 					case normal
 						printf (_ '%s is a function with definition\n') $i
-						functions $i
-
+						if isatty stdout
+							functions $i | fish_indent --ansi
+						else
+							functions $i | fish_indent
+						end
 					case type
 						echo (_ 'function')
 				end