treewide: add license header and enable haslicense linter
Change-Id: I873a8d4082d75e8f813d8a726a41187eea7a065e
Reviewed-on: https://review.monogon.dev/c/monogon/+/3825
Tested-by: Jenkins CI
Reviewed-by: Leopold Schabel <leo@monogon.tech>
diff --git a/build/analysis/lib/genstd/main.go b/build/analysis/lib/genstd/main.go
index eae356b..cfb201d 100644
--- a/build/analysis/lib/genstd/main.go
+++ b/build/analysis/lib/genstd/main.go
@@ -1,3 +1,6 @@
+// Copyright The Monogon Project Authors.
+// SPDX-License-Identifier: Apache-2.0
+
// This tool generates //build/analysis/lib:stdlib_packages.go, which contains a
// set of all Go stdlib packges. This is generated ahead of time in the build
// system as it can be an expensive operation that also depends on the presence