fix(units): iota units

Author: berryhe

pkg/utils/units.go

@@ -3,8 +3,11 @@ package utils
 // Binary size units
 // See: http://en.wikipedia.org/wiki/Binary_prefix
 const (
-	KiB = 1024
-	MiB = 1024 * KiB
-	GiB = 1024 * MiB
-	TiB = 1024 * GiB
+	_   = iota             // ignore first value by assigning to blank identifier
+	KiB = 1 << (10 * iota) // 1 << (10*1)
+	MiB                    // 1 << (10*2)
+	GiB                    // 1 << (10*3)
+	TiB                    // 1 << (10*4)
+	PiB                    // 1 << (10*5)
+
 )