Dsync backup: global options must be placed before the actual command

Should fix #6243 (closed)

changed title from global options must be placed before the actual command to Dsync backup: global options must be placed before the actual command

changed milestone to %3.2.8

added MR: Review Pending label

requested review from @pixcept

added MR: Reviewed MB label

merged

mentioned in commit 6f40259d

removed MR: Review Pending label