gpg: ECDSA public key is expected to be in SEC encoding multiple of 8 bits

[Brian Minton]

I'm seeing an interesting message when encrypting and signing with my
ECDSA/EDDSA subkeys.  The encryption and signing seems to work, so
it's mainly just an informational message:

bminton at bminton:~$ echo hi|gpg2 -u 0424DC19B678A1A9 -r 0424DC19B678A1A9 -a -e -s
gpg: ECDSA public key is expected to be in SEC encoding multiple of 8 bits
-----BEGIN PGP MESSAGE-----
Version: GnuPG v2

[snip]
-----END PGP MESSAGE-----
bminton at bminton:~$ echo hi|gpg2 -u 0424DC19B678A1A9 -r
0424DC19B678A1A9 -a -e -s|gpg2
gpg: ECDSA public key is expected to be in SEC encoding multiple of 8 bits
gpg: encrypted with 384-bit ECDH key, ID EA49CFDB55D113E9, created 2014-10-12
      "Brian Minton <brian at minton.name>"
hi
gpg: Signature made Thu Nov 20 11:06:18 2014 EST
gpg:                using EDDSA key 37B9507ACFF2016E
gpg: Good signature from "Brian Minton <brian at minton.name>" [ultimate]
gpg:                 aka "Brian Minton <bjmgeek at gmail.com>" [ultimate]