Tweak display of missing sha
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							@ -41,6 +41,7 @@ end
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def dump_config
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					def dump_config
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  require 'hardware'
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					  require 'hardware'
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  sha = `cd #{HOMEBREW_REPOSITORY} && git rev-parse --verify HEAD 2> /dev/null`.chomp
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					  sha = `cd #{HOMEBREW_REPOSITORY} && git rev-parse --verify HEAD 2> /dev/null`.chomp
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					  sha = "(none)" if sha.empty?
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  bits = Hardware.bits
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					  bits = Hardware.bits
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  cores = Hardware.cores_as_words
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					  cores = Hardware.cores_as_words
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  kernel_arch = `uname -m`.chomp
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					  kernel_arch = `uname -m`.chomp
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