Bash logging: Make LOGEND message optional
Bash logging: Make LOGEND message optional

Fixed warning if LOGEND was called without message
The message for LOGEND is optional in PHP and Perl, therefore now also in Bash

Fixes #1086

mschlenstedt/Loxberry,mschlenstedt/Loxberry,mschlenstedt/Loxberry,mschlenstedt/Loxberry,mschlenstedt/Loxberry,mschlenstedt/Loxberry