message: nydusify: fix a compile warning causing make ut failes
  pkg/parser/parser.go:229:5: Warn call has possible formatting directive %s
diff: @@ -226,7 +226,7 @@ func (parser *Parser) Parse(ctx context.Context) (*Parsed, error) {
  // FIXME: Returning the first image without platform specified is subtle.
  // It might not violate Image spec.
  ociDesc = &desc
  - logrus.Warn("Will cook a image without platform, %s", ociDesc.Digest)
  + logrus.Warnf("Will cook a image without platform, %s", ociDesc.Digest)
  }
  }
  }
  