treewide: format repo with buildifier

Change-Id: Ia7aebeb7bba5b119c9157d1ad805cc477bcbb68a
Reviewed-on: https://review.monogon.dev/c/monogon/+/3774
Tested-by: Jenkins CI
Reviewed-by: Leopold Schabel <leo@monogon.tech>
diff --git a/osbase/build/genosrelease/defs.bzl b/osbase/build/genosrelease/defs.bzl
index 6fed483..2e7c613 100644
--- a/osbase/build/genosrelease/defs.bzl
+++ b/osbase/build/genosrelease/defs.bzl
@@ -43,7 +43,7 @@
         "stamp_var": attr.string(mandatory = True),
         "_genosrelease": attr.label(
             default = Label("//osbase/build/genosrelease"),
-            cfg = "host",
+            cfg = "exec",
             executable = True,
             allow_files = True,
         ),