change regexp for ascii escapes in log

Dependencies

• [2] PY4WQF5G remove ascii escapes from log in tail page and emails
• [3] F5RYSE7T qualify order by column
• [4] AFTXA575 * $HYDRA_DATA environment variable.
• [*] 2GK5DOU7 * Downloading closures.

Change contents

• replacement in src/lib/Hydra/Helper/Nix.pm at line 264
  [2.199]→[2.199:234](∅→∅)
  − $logtext =~ s/\e\[[A-Za-z]//g;
  [2.199]

  [2.234]
  + $logtext =~ s/\e\[[0-9]*[A-Za-z]//g;