age -d -i key.txt armored_with_leading_and_trailing_whitespace.txt
stdout test

-- key.txt --
# created: 2025-12-23T22:21:12+01:00
# public key: age15w9kgvgggmfra4sz6vk39kz4mveuq2sfv5vmcu090y0k2sluepaqv7z2fv
AGE-SECRET-KEY-18J6FVYJE2AFSJ0RPH6M29GMUU62UVRSCNWUJZSGETH6R38Q5AZ3S2DHAZ9

-- armored_with_leading_and_trailing_whitespace.txt --

   

-----BEGIN AGE ENCRYPTED FILE-----
YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IFgyNTUxOSA5ODhFNHR6RVg0SGVHZFBM
clBEclEzZ3NvOGhqVE9tcFZnbTc2c3R5a0Q4ClZjVzBLNjdxRElZV3E0Z3ZpZ255
T3JWTFBHRFA2cytpWWtkeU45dDRadmcKLS0tIHV3L3hOVmJjL0hMRXBQa05lMlRs
ZW45TndPeE9GcmRNeWFkR3YxeHg0YzQKJBp6KRlFFUE8jbAQUBlcAwaaQcPAflJD
pWGoOjYP33gTxJHNPg==
-----END AGE ENCRYPTED FILE-----