String isn't Enumerable in 1.9+
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				@ -49,8 +49,8 @@ module Homebrew extend self
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    end
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    # Find all files that still reference the keg via a string search
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    keg_ref_files = `/usr/bin/fgrep --files-with-matches --recursive "#{string}" "#{keg}" 2>/dev/null`
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    keg_ref_files = (keg_ref_files.map{ |file| Pathname.new(file.strip) }).reject(&:symlink?)
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    keg_ref_files = `/usr/bin/fgrep --files-with-matches --recursive "#{string}" "#{keg}" 2>/dev/null`.split
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    keg_ref_files.map! { |file| Pathname.new(file) }.reject!(&:symlink?)
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    # If there are no files with that string found, return immediately
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    return false if keg_ref_files.empty?
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