Allow indented comments in build.info
Allow indented comments in build.info

Reviewed-by: Emilia Käsper <6521fc25e7624eef7c3a0d89b71de7e612d27d37@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1789)
openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl