From 0f16fb62e3f02e80af5570b56fbf13344828d3cc Mon Sep 17 00:00:00 2001
From: Hu Keping <hukeping@huawei.com>
Date: Sat, 19 Sep 2015 10:36:10 +0800
Subject: [PATCH] Format output of docker info

Format those info which will only be displayed when daemon is
in debug mode.

Signed-off-by: Hu Keping <hukeping@huawei.com>
---
 ioutils/fmt.go | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/ioutils/fmt.go b/ioutils/fmt.go
index 801132f..0b04b0b 100644
--- a/ioutils/fmt.go
+++ b/ioutils/fmt.go
@@ -12,3 +12,11 @@ func FprintfIfNotEmpty(w io.Writer, format, value string) (int, error) {
 	}
 	return 0, nil
 }
+
+// FprintfIfTrue prints the boolean value if it's true
+func FprintfIfTrue(w io.Writer, format string, ok bool) (int, error) {
+	if ok {
+		return fmt.Fprintf(w, format, ok)
+	}
+	return 0, nil
+}