Parse flags on startup.

The generated code had imported flag but was not using it.

Not having flag.Parse() in the beginning was resulting in errors like the following when we hit a glog logged line.
ERROR: logging before flag.Parse: ...

Author: rohitagarwal003

pkg/scaffold/manager/cmd.go

@@ -57,6 +57,7 @@ import (
 )
 
 func main() {
+	flag.Parse()
 	logf.SetLogger(logf.ZapLogger(false))
 	log := logf.Log.WithName("entrypoint")
 

test/project/cmd/manager/main.go

@@ -17,6 +17,7 @@ limitations under the License.
 package main
 
 import (
+	"flag"
 	"os"
 
 	_ "k8s.io/client-go/plugin/pkg/client/auth/gcp"
@@ -30,6 +31,7 @@ import (
 )
 
 func main() {
+	flag.Parse()
 	logf.SetLogger(logf.ZapLogger(false))
 	log := logf.Log.WithName("entrypoint")