Improve gem pristine warning message

jonleighton · jonleighton · commit 3dc848a2b9e5 · 2014-01-13T19:59:04.000Z
See #240.
diff --git a/bin/spring b/bin/spring
@@ -21,6 +21,7 @@ if defined?(Gem)
 
     if unstubbed.any?
       warn "Warning: Running `gem pristine --all` to regenerate your installed gemspecs " \
+           "(and deleting then reinstalling your bundle if you use bundle --path) " \
            "will improve the startup performance of Spring."
     end
   end
