func (v ServerNotInstalledError) Error() string {
	return fmt.Sprintf("server for %#q VCS is not installed", v.name)
}

// HandleScript ensures that the script at scriptRelPath has been evaluated
// with its current contents.
//
// If the script completed successfully, HandleScript invokes f on the handler
// with the script's result still read-locked, and waits for it to return. (That

			// different VCS tools have different handler protocols,
			// and the tests that actually use these repos will ensure
			// that they are served correctly as a side effect anyway.
			err := s.HandleScript(rel, logger, func(http.Handler) {})
			if buf.Len() > 0 {
				t.Log(buf)
			}
			if err != nil {