fix rubocop

lib/load_ico.rb

@@ -111,7 +111,7 @@ module LoadIco
     and_scanline_stride = 0
     if has_and_mask
       and_mask_data_offset = xor_mask_data_offset + (image_pixel_height * xor_scanline_stride)
-      and_scanline_stride = (((dib_width * 1) + 31) / 32) * 4
+      and_scanline_stride = ((dib_width + 31) / 32) * 4
     end
 
     flat_rgba_pixels = []
@@ -128,7 +128,7 @@ module LoadIco
       if has_and_mask
         dib_io.seek(and_mask_data_offset + (y_dib_row * and_scanline_stride))
         and_mask_scanline_bytes = dib_io.read(and_scanline_stride)
-        min_and_bytes_needed = ((dib_width * 1) + 7) / 8
+        min_and_bytes_needed = (dib_width + 7) / 8
         return nil unless and_mask_scanline_bytes && and_mask_scanline_bytes.bytesize >= min_and_bytes_needed
 
         (0...dib_width).each do |x_pixel|