Lines up casecmp downcase example.

Author: JuanitoFatas

code/string/casecmp-vs-downcase-==.rb

@@ -12,6 +12,6 @@ def fast
 
 Benchmark.ips do |x|
   x.report('String#downcase + ==') { slow }
-  x.report('String#casecmp') { fast }
+  x.report('String#casecmp')       { fast }
   x.compare!
 end