Exit with failure when stdin is an empty file (#146)
Exit with failure when stdin is an empty file (#146)

Signed-off-by: Marin Ivanov <34c6fceca75e456f25e7e99531e2425c6c1de443@metala.org>
open-eid/chrome-token-signing,open-eid/chrome-token-signing,metsma/chrome-token-signing,metsma/chrome-token-signing,metsma/chrome-token-signing,metsma/chrome-token-signing,metsma/chrome-token-signing,open-eid/chrome-token-signing,open-eid/chrome-token-signing,open-eid/chrome-token-signing