
Also, this patch simplify `format_message` method of base Rally exception class Change-Id: Ia6ccd68bb7740ea43402e633017684d4df8c07fe Closes-Bug: #1491388
Also, this patch simplify `format_message` method of base Rally exception class Change-Id: Ia6ccd68bb7740ea43402e633017684d4df8c07fe Closes-Bug: #1491388