ecc: Adjust debugging output

* cipher/ecc.c (ecc_check_secret_key): Adjust debugging output to use
full column titles.

Without this change, the debugging headers say "inf" and "nam". With
this change, the alignment for all columns stay the same, but the
headers say "info" and "name", which are much more legible.

• Signed-off-by: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
• GnuPG-bug-id: T4414