openssl-enc: needs additional base64 garbage check?

Hello.

  #?1|kent:tmp$ x=U2FsdGVkX19hzr7eekkcCcfeydWYK7HAeLr2lRPThis
[  ^ $? of last command]

  #?0|kent:tmp$ printf ${x}= | openssl enc -aes256 -k "dubidada" -a -A -pbkdf2 -d
  #?0|kent:tmp$ printf ${x}=t | openssl enc -aes256 -k "dubidada" -a -A -pbkdf2 -d
  #?0|kent:tmp$ printf ${x}=to | openssl enc -aes256 -k "dubidada" -a -A -pbkdf2 -d
  #?0|kent:tmp$ printf ${x}=tor | openssl enc -aes256 -k "dubidada" -a -A -pbkdf2 -d
  #?0|kent:tmp$ printf ${x}=tory | openssl enc -aes256 -k "dubidada" -a -A -pbkdf2 -d
  bad decrypt
  80000908367F0000:error:1C80006B:Provider routines:ossl_cipher_generic_block_final:wrong final block length:providers/implementations/ciphers/ciphercommon.c:443:

  #?1|kent:tmp$ printf ${x} | openssl enc -aes256 -k "dubidada" -a -A -pbkdf2 -d
  bad decrypt
  80105031D77F0000:error:1C80006B:Provider routines:ossl_cipher_generic_block_final:wrong final block length:providers/implementations/ciphers/ciphercommon.c:443:

  #?1|kent:tmp$ printf 0${x} | openssl enc -aes256 -k "dubidada" -a -A -pbkdf2 -d
  bad magic number

  #?1|kent:tmp$ printf 0${x}= | openssl enc -aes256 -k "dubidada" -a -A -pbkdf2 -d
  bad magic number

  #?1|kent:tmp$ printf ${x}= | openssl enc -aes256 -k "dubidada" -a -A -pbkdf2 -d

github issue?

--steffen
|
|Der Kragenbaer,                The moon bear,
|der holt sich munter           he cheerfully and one by one
|einen nach dem anderen runter  wa.ks himself off
|(By Robert Gernhardt)