Adding upstream version 0.8.9.

Signed-off-by: Daniel Baumann <daniel@debian.org>

pkg/util/util.go

@@ -0,0 +1,27 @@
+package util
+
+import (
+	"io"
+	"log"
+)
+
+// Min returns the smallest of a and b.
+func Min(a int, b int) int {
+	if a < b {
+		return a
+	}
+
+	return b
+}
+
+// Max returns the largest of a and b.
+func Max(a int, b int) int {
+	if a > b {
+		return a
+	}
+
+	return b
+}
+
+// DiscardLogger is a logger that discards any output written to it.
+var DiscardLogger = log.New(io.Discard, "", 0)