Return proper results if too many open files
Return proper results if too many open files

Fixes #446

mfikes/planck,slipset/planck,slipset/planck,mfikes/planck,mfikes/planck,mfikes/planck,mfikes/planck,slipset/planck,slipset/planck,mfikes/planck,slipset/planck