Fix log filename format (#820)
Fix log filename format (#820)

Fixes #818
stevetayloruk/Orchard2,xkproject/Orchard2,petedavis/Orchard2,lukaskabrt/Orchard2,petedavis/Orchard2,lukaskabrt/Orchard2,stevetayloruk/Orchard2,stevetayloruk/Orchard2,OrchardCMS/Brochard,xkproject/Orchard2,stevetayloruk/Orchard2,petedavis/Orchard2,petedavis/Orchard2,lukaskabrt/Orchard2,xkproject/Orchard2,OrchardCMS/Brochard,OrchardCMS/Brochard,lukaskabrt/Orchard2,xkproject/Orchard2,xkproject/Orchard2,stevetayloruk/Orchard2