Improved syntax/style of file log backend.
Improved syntax/style of file log backend.

MBRG/otrs,muehlbauer/otrs,moritz/otrs,mburggraf/otrs,oiami/otrs,mburggraf/otrs,eliasp/otrs,StCyr/otrs,PortgasDAce/otrs,xhoy/otrs,muehlbauer/otrs,thorsteneckel/otrs,muehlbauer/otrs,mburggraf/otrs,nilei/otrs,xhoy/otrs,rudy500/otrs,linearregression/otrs,capeit-tto/otrs,noritnk/otrs,crythias/otrs,moritz/otrs,vlascoder/otrs,s7design/otrs,thorsteneckel/otrs,thorsteneckel/otrs,eliasp/otrs,xhoy/otrs,noritnk/otrs,balazj/otrs,brandonshults01/otrs,brandonshults01/otrs,nilei/otrs,MBRG/otrs,oiami/otrs,mburggraf/otrs,xhoy/otrs,balazj/otrs,mburggraf/otrs,rudy500/otrs,eliasp/otrs,rudy500/otrs,thorsteneckel/otrs,PortgasDAce/otrs,muehlbauer/otrs,brandonshults01/otrs,crythias/otrs,rudy500/otrs,oiami/otrs,s7design/otrs,eliasp/otrs,balazj/otrs,StCyr/otrs,MBRG/otrs,linearregression/otrs,crythias/otrs,oiami/otrs,mbeijen/otrs-1,MBRG/otrs,balazj/otrs,StCyr/otrs,moritz/otrs,linearregression/otrs,MBRG/otrs,oiami/otrs,s7design/otrs,moritz/otrs,balazj/otrs,xhoy/otrs,vlascoder/otrs,rudy500/otrs,nilei/otrs,s7design/otrs,nilei/otrs,capeit-tto/otrs,s7design/otrs,moritz/otrs,thorsteneckel/otrs,PortgasDAce/otrs,crythias/otrs,PortgasDAce/otrs,nilei/otrs,eliasp/otrs,noritnk/otrs,vlascoder/otrs,capeit-tto/otrs,muehlbauer/otrs,brandonshults01/otrs,crythias/otrs,brandonshults01/otrs,mbeijen/otrs-1,StCyr/otrs,linearregression/otrs,linearregression/otrs,mbeijen/otrs-1,PortgasDAce/otrs,StCyr/otrs