Hydra/Helper/CatalystUtils: default trim arg to empty string

Dependencies

• [2] FPK5LF53 * Put the project-related actions in a separate controller. Put the
• [3] LMETCA7G Cleanup
• [4] ODNCGFQ5 * Improved the navigation bar: don't include all projects (since that
• [5] RX5IIZMT Use Email::MIME instead of Email::Simple
• [*] LBNVQXUB * Build the /build stuff in a separate controller.

Change contents

• replacement in src/lib/Hydra/Helper/CatalystUtils.pm at line 282
  [2.11400]→[2.11400:11419](∅→∅)
  − my $s = shift;
  [2.11400]

  [2.11419]
  + my $s = shift // "";