Update recipe to actually fetch and build changes

Currently, we only test the bootstrap.

Change-Id: I63c0aaf3f5c7f8b0abe52d480517515844b332ef
Reviewed-on: https://gn-review.googlesource.com/1260
Reviewed-by: Scott Graham <scottmg@chromium.org>
Commit-Queue: Petr Hosek <phosek@google.com>
diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 0000000..2491fdf
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,3 @@
+[*.py]
+indent_style = space
+indent_size = 2