webhook: Fix "logging before flag.Parse" errors
webhook: Fix "logging before flag.Parse" errors

Fixes #932

Signed-off-by: Benjamin Staffin <7ff02effd2e7aa57491d2da194ef1ab398b1a4cf@gmail.com>

jetstack-experimental/cert-manager,cert-manager/cert-manager,jetstack/cert-manager,cert-manager/cert-manager,jetstack/cert-manager,cert-manager/cert-manager,jetstack-experimental/cert-manager,jetstack/cert-manager,jetstack-experimental/cert-manager