Fixed small error in ParamObject causing warnings for file uploads.
Fixed small error in ParamObject causing warnings for file uploads.

MBRG/otrs,nilei/otrs,rudy500/otrs,s7design/otrs,xhoy/otrs,crythias/otrs,thorsteneckel/otrs,crythias/otrs,MBRG/otrs,thorsteneckel/otrs,mburggraf/otrs,MBRG/otrs,rudy500/otrs,crythias/otrs,rudy500/otrs,thorsteneckel/otrs,mburggraf/otrs,nilei/otrs,s7design/otrs,MBRG/otrs,mburggraf/otrs,rudy500/otrs,thorsteneckel/otrs,nilei/otrs,thorsteneckel/otrs,s7design/otrs,s7design/otrs,nilei/otrs,xhoy/otrs,s7design/otrs,crythias/otrs,xhoy/otrs,mburggraf/otrs,MBRG/otrs,nilei/otrs,xhoy/otrs,crythias/otrs,rudy500/otrs,mburggraf/otrs,xhoy/otrs