[Crash-utility] missing word in "help list"

<nitpick> There's a missing word in the DESCRIPTION for "help list": DESCRIPTION This command dumps the contents of a linked list. The entries in a linked are typically data structures that are tied together in one of two formats: "The entries in a linked are typically ..." should read "The entries in a linked list are typically". </nitpick> Chip -- Charles M. "Chip" Coldwell Senior Software Engineer Red Hat, Inc