gpg: Make ASCII armor decoding more robust to encoding errors.
* g10/armor.c (radix64_read): If the = is followed by the string "3D", check if the following four characters are valid radix 64 and are followed by a new line. If so, warn and ignore the '3D'.
- Signed-off-by: Neal H. Walfield <email@example.com>
- GnuPG-bug-id: T2250