Add debugging steps.

Author: qbarrand

ci/prow/lint

@@ -5,7 +5,7 @@ set -euxo pipefail
 # Generate code and compare with the current source.
 # Fail with a diff if some files are outdated.
 go install github.com/golang/mock/[email protected]
-PATH="${PATH}:${HOME}/go/bin" make generate
+PATH="${PATH}:${GOPATH}/bin" make generate
 
 if ! git diff --exit-code; then
     echo "Changes detected"