Catch exceptions when finding commands on PATH in Prompt.Shell
Catch exceptions when finding commands on PATH in Prompt.Shell

Ignore-this: 5a4d08c80301864bc14ed784f1054c3f

darcs-hash:20130616230219-30370-faf7ce8665584673a3d0a5a1a609eebb56ab2b66

yzhou61/xmonad-contrib,yzhou61/xmonad-contrib,yzhou61/xmonad-contrib