Capture pre-start-unprivileged output
Capture pre-start-unprivileged output

- For normal pre-start runs BOSH will capture the output for us
- We are not started by BOSH so we need to redirect our own output

[#117549509]

Signed-off-by: Aaron Hurley <6c541e38cb40b4360b80e64c308405691f38e38a@pivotal.io>

cloudfoundry-incubator/galera-healthcheck,cloudfoundry-incubator/galera-healthcheck