Bug 17081 Incorrect comparison operator used in edifactmsgs.pl

Bug 17081 Incorrect comparison operator used in edifactmsgs.pl

Numeric comparison operator is used where string comparison required,
resulting in the following warning in the log: 'Argument "delete" isn't
numeric in numeric eq (==).'

This patch corrects it to use 'eq' not '==' to compare strings.

To test, apply the patch and go to Acquisitions -> EDIFACT messages.

Delete an EDIFACT message. There should be no error in the error log.

Signed-off-by: Owen Leonard <oleonard@myacpl.org>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
(cherry picked from commit cc6fc0800cb3446ebe482b7dbb2f6ec4a543d869)
Signed-off-by: Frédéric Demians <f.demians@tamil.fr>