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use stderr to debug iptables

Docker-DCO-1.1-Signed-off-by: Victor Vieux <vieux@docker.com> (github: vieux)

Victor Vieux authored on 2014/05/31 04:39:42
Showing 1 changed files

pkg/iptables/iptables.go index e3f4d74..748b69a 100644

@@ -158,7 +158,7 @@ func Raw(args ...string) ([]byte, error) {
 	}
 
 	if os.Getenv("DEBUG") != "" {
-		fmt.Printf("[DEBUG] [iptables]: %s, %v\n", path, args)
+		fmt.Fprintf(os.Stderr, fmt.Sprintf("[debug] %s, %v\n", path, args))
 	}
 
 	output, err := exec.Command(path, args...).CombinedOutput()

...	...	@@ -158,7 +158,7 @@ func Raw(args ...string) ([]byte, error) {
158	158	}
159	159
160	160	if os.Getenv("DEBUG") != "" {
161		- fmt.Printf("[DEBUG] [iptables]: %s, %v\n", path, args)
	161	+ fmt.Fprintf(os.Stderr, fmt.Sprintf("[debug] %s, %v\n", path, args))
162	162	}
163	163
164	164	output, err := exec.Command(path, args...).CombinedOutput()