vendor: initial vendor

Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>

vendor/github.com/docker/cli/cli/debug/debug.go

@@ -0,0 +1,26 @@
+package debug
+
+import (
+	"os"
+
+	"github.com/sirupsen/logrus"
+)
+
+// Enable sets the DEBUG env var to true
+// and makes the logger to log at debug level.
+func Enable() {
+	os.Setenv("DEBUG", "1")
+	logrus.SetLevel(logrus.DebugLevel)
+}
+
+// Disable sets the DEBUG env var to false
+// and makes the logger to log at info level.
+func Disable() {
+	os.Setenv("DEBUG", "")
+	logrus.SetLevel(logrus.InfoLevel)
+}
+
+// IsEnabled checks whether the debug flag is set or not.
+func IsEnabled() bool {
+	return os.Getenv("DEBUG") != ""
+}