doc/ex/Use01.rb in rmagick-2.13.4 vs doc/ex/Use01.rb in rmagick-2.14.0

@@ -1,16 +1,15 @@
 require 'rvg/rvg'
 
 Magick::RVG.dpi = 90
 
 rvg = Magick::RVG.new(10.cm, 3.cm).viewbox(0, 0, 100, 30) do |canvas|
-    canvas.background_fill = 'white'
-    canvas.desc = "Example Use01 - Simple case of 'use' on a 'rect'"
-    r = Magick::RVG::Group.new do |grp|
-            grp.rect(60, 10)
-        end
-    canvas.rect(99.6, 29.6, 0.1, 0.1).styles(:fill=>'none', :stroke=>'blue', :stroke_width=>0.2)
-    canvas.use(r, 20, 10)
+  canvas.background_fill = 'white'
+  canvas.desc = "Example Use01 - Simple case of 'use' on a 'rect'"
+  r = Magick::RVG::Group.new do |grp|
+    grp.rect(60, 10)
+  end
+  canvas.rect(99.6, 29.6, 0.1, 0.1).styles(:fill=>'none', :stroke=>'blue', :stroke_width=>0.2)
+  canvas.use(r, 20, 10)
 end
 
 rvg.draw.write('Use01.gif')
-