Support "ALGO" being the command name. For example:
authorGreg Stein <gstein@gmail.com>
Fri, 6 Dec 2019 06:26:39 +0000 (00:26 -0600)
committerGreg Stein <gstein@gmail.com>
Fri, 6 Dec 2019 06:26:39 +0000 (00:26 -0600)
commit501782aa851f8d5c01ba9d3a33e51f50d29490cc
tree6634f6448ad526ed59d3cb88f6a80acab45be674
parent14a758f593219cdac2d0a295c3bed97d6346bb18
Support "ALGO" being the command name. For example:
  $ otp-md5 10 seedname

This allows for a copy/paste from the remote challenge directly to
the local shell prompt (rather than a challenge prompt).

Added a little of code to support multiple algorithms, but bail out
if the specified algorithm is not supported.

Suggested by: rubys
Closes: issue #1
otp.py