Pass Debug enabled logger to WipeDrive

WipeDrive funcs now log at either .Debug or .Error levels but we want to
see the same messages so need to change the LogLevel to Debug. Need a
new logger instead of current logger so the change only applies to
WipeDrive.

cmd/disk_wipe.go

@@ -112,6 +112,8 @@ func init() {
 				}).Fatal("failed find appropriate drive wiper")
 			}
 
+			logger = logrus.New()
+			logger.SetLevel(logrus.DebugLevel)
 			err = wiper.WipeDrive(ctx, logger, drive)
 			if err != nil {
 				l.Fatal("failed to wipe drive")