utils/ruby.sh: rename test-ruby to test_ruby. Cosmetic changes
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				@ -1,8 +1,15 @@
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test-ruby () {
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  [[ ! -x $1 ]] && { echo "false"; return 1; }
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  "$1" --enable-frozen-string-literal --disable=gems,did_you_mean,rubyopt -rrubygems -e \
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test_ruby () {
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  if [[ ! -x $1 ]]
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  then
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    return 1
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  fi
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  local ruby_status
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  ruby_status=$("$1" --enable-frozen-string-literal --disable=gems,did_you_mean,rubyopt -rrubygems -e \
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    "puts Gem::Version.new(RUBY_VERSION.to_s.dup).to_s.split('.').first(2) == \
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          Gem::Version.new('$required_ruby_version').to_s.split('.').first(2)" 2>/dev/null
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          Gem::Version.new('$required_ruby_version').to_s.split('.').first(2)" 2>/dev/null)
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  test "$ruby_status" = true
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}
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setup-ruby-path() {
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@ -57,7 +64,7 @@ If there's no Homebrew Portable Ruby available for your processor:
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      IFS=$'\n' # Do word splitting on new lines only
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      for ruby_exec in $(which -a ruby) $(PATH=$HOMEBREW_PATH which -a ruby)
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      do
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        if [[ $(test-ruby "$ruby_exec") == "true" ]]; then
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        if [[ $(test_ruby "$ruby_exec") == "true" ]]; then
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          HOMEBREW_RUBY_PATH=$ruby_exec
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          break
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        fi
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@ -71,7 +78,7 @@ If there's no Homebrew Portable Ruby available for your processor:
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      usable_ruby_version="true"
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    elif [[ -n "$HOMEBREW_RUBY_PATH" && -z "$HOMEBREW_FORCE_VENDOR_RUBY" ]]
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    then
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      usable_ruby_version=$(test-ruby "$HOMEBREW_RUBY_PATH")
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      usable_ruby_version=$(test_ruby "$HOMEBREW_RUBY_PATH")
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    fi
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    if [[ -z "$HOMEBREW_RUBY_PATH" || -n "$HOMEBREW_FORCE_VENDOR_RUBY" || "$usable_ruby_version" != "true" ]]
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