Add _opam in gitignore for OPAM 2.0 local switch

dannywillems · vasilisp · commit 7b9e4479b87f · 2016-09-27T14:51:07.000+02:00
diff --git a/.gitignore b/.gitignore
@@ -36,3 +36,4 @@ local/var/lib/ocsidb
 local/etc/ocsigenserver.conf
 local/etc/ocsigenserver.conf.opt
 doc/api-html
+_opam
