~smoser/ubuntu/trusty/cloud-init/trusty-1461242

remove use of 'decode_binary'

there is no 'decode_binary' here.
the return values from subp in python2 are strings.

added added

removed removed

101

- util.logexc(log, "Failed generating key type %s to "

102

- "file %s", keytype, keyfile)

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+ out, err = util.subp(cmd, capture=True, env=lang_c)

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+ sys.stdout.write(util.decode_binary(out))

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+ sys.stdout.write(out)

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+ except util.ProcessExecutionError as e:

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+ err = util.decode_binary(e.stderr).lower()

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+ err = e.stderr.lower()

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+ if (e.exit_code == 1 and

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+ err.lower().startswith("unknown key")):

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+ log.debug("ssh-keygen: unknown key type '%s'", keytype)