Fri, 20 Mar 2015 12:51:57 -0700 prune: add --keep to not touch the working copy
Durham Goode <durham@fb.com> [Fri, 20 Mar 2015 12:51:57 -0700] rev 1221
prune: add --keep to not touch the working copy In order to more closely emulate strip, lets add --keep to leave the working copy untouched when we do our prune.
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