[dovecot/core] 96f35f: doveadm-log: Fixed trimming empty prefixes.

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/dovecot/core
  Commit: 96f35f249ab0d8d19c5201f6e6c850514ad36971
      https://github.com/dovecot/core/commit/96f35f249ab0d8d19c5201f6e6c850514ad36971
  Author: Timo Sirainen <timo.sirainen at dovecot.fi>
  Date:   2016-02-26 (Fri, 26 Feb 2016)

  Changed paths:
    M src/doveadm/doveadm-log.c

  Log Message:
  -----------
  doveadm-log: Fixed trimming empty prefixes.

Too eager (long) cast removal from the original code broke it. Changed to
a slightly simplified version now.