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Kim F. Storm authored
to mean "use find -exec"; nil now unambiguously means auto-detect. (grep-compute-defaults): Set grep-find-use-xargs to `exec' if not `gnu'. Use shell-quote-argument to build grep-find-command and grep-find-template. (rgrep): Use shell-quote-argument to properly quote arguments to find. Reported by Tom Seddon.
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