Simplify logfile parsing and drop unreachable codepath. #23
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Simplify a weird use of grep, and drop an unreachable codepath.
On lines 251 to 255, you are exiting if there are less than 2 backups that can be found; then on lines 257 to 261 you exit if there are no backups to be found; this is redundant, if there were no backups to be found you'd already have exited previously.