Fix RuboCop offenses

Author: blocknotes

lib/prawn_html/utils.rb

@@ -45,7 +45,7 @@ def convert_color(value, options: nil)
 
       if val.match /\A#([a-f0-9]{3})\Z/ # rubocop:disable Performance/RedundantMatch
         r, g, b = Regexp.last_match[1].chars
-        return r * 2 + g * 2 + b * 2
+        return (r * 2) + (g * 2) + (b * 2)
       end
       if val.match /\Argb\s*\(\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*\)\Z/ # rubocop:disable Performance/RedundantMatch
         r, g, b = Regexp.last_match[1..3].map { |v| v.to_i.to_s(16) }

spec/integrations/lists_spec.rb

@@ -51,7 +51,7 @@
       expected_array = [
         [x, y.round(5)],
         [x, (y - font.height - TestUtils.adjust_leading).round(5)],
-        [x, (y - font.height * 2 - TestUtils.adjust_leading * 2).round(5)]
+        [x, (y - (font.height * 2) - (TestUtils.adjust_leading * 2)).round(5)]
       ]
 
       expect(text_analysis.positions).to match_array(expected_array)

spec/integrations/styles_spec.rb

@@ -29,7 +29,7 @@
       let(:expected_content) { ['Some content'] }
       let(:expected_positions) do
         [[
-          (pdf.page.margins[:left] + (pdf.bounds.width - content_width) / 2).round(4),
+          (pdf.page.margins[:left] + ((pdf.bounds.width - content_width) / 2)).round(4),
           (pdf.y - TestUtils.default_font.ascender).round(4)
         ]]
       end
@@ -151,7 +151,7 @@
       text_analysis = PDF::Inspector::Text.analyze(pdf.render)
 
       expect(text_analysis.strings).to eq(['aaa', 'bbb', 'ccc'])
-      expect(text_analysis.character_spacing).to eq([1.5, 0.0] * 3 + [2.0, 0.0] * 3)
+      expect(text_analysis.character_spacing).to eq(([1.5, 0.0] * 3) + ([2.0, 0.0] * 3))
     end
   end