Listbakcup in pretty mode fails

[proura]

Issue details:

• Issue type: Bug
• Impact: Low
• How often it happens: Always
• Brief description of the issue: In listbackup workflow with pretty option enabled appears and extra line between each backup.
• Work-around, if any: this only happen when there are backups in the database without size and duration.

DRLM Server information:

• DRLM version (/usr/sbin/drlm -V): 2.3.0

[NefixEstrada]

#122 closes this