builder: cleanup .timing_message/2

vlib/v/builder/builder.v

@@ -334,7 +334,8 @@ fn verror(s string) {
 }
 
 pub fn (mut b Builder) timing_message(msg string, ms i64) {
-	formatted_message := '$msg: ${util.bold(ms.str())} ms'
+	value := util.bold('$ms')
+	formatted_message := '$msg: $value ms'
 	if b.pref.show_timings {
 		println(formatted_message)
 	} else {

vlib/v/util/errors.v

@@ -35,7 +35,7 @@ mut:
 
 pub fn new_error_manager() &EManager {
 	return &EManager{
-		support_color: term.can_show_color_on_stderr()
+		support_color: term.can_show_color_on_stderr() && term.can_show_color_on_stdout()
 	}
 }