Added a special case to text-file-contents for files in /{proc,dev,sys}/.
Added a special case to text-file-contents for files in /{proc,dev,sys}/.

informatimago/lisp,GitoriousLispBackup/com-informatimago,informatimago/lisp,informatimago/lisp,informatimago/lisp,GitoriousLispBackup/com-informatimago,GitoriousLispBackup/com-informatimago,informatimago/lisp,GitoriousLispBackup/com-informatimago,GitoriousLispBackup/com-informatimago,informatimago/lisp,informatimago/lisp,GitoriousLispBackup/com-informatimago