make cmd spec of SignalException message work for jruby in 1.8 mode
make cmd spec of SignalException message work for jruby in 1.8 mode
mihailim/image_optim,ramiroaraujo/image_optim,weheartit/image_optim,toy/image_optim,toy/image_optim,weheartit/image_optim,ramiroaraujo/image_optim,mihailim/image_optim,mihailim/image_optim,toy/image_optim,ramiroaraujo/image_optim,weheartit/image_optim