Use `register_scanner` instead of `regist_scanner`

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59498 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

lib/erb.rb

@@ -517,7 +517,7 @@ class ERB
           end
         end
       end
-      Scanner.regist_scanner(SimpleScanner, nil, false)
+      Scanner.register_scanner(SimpleScanner, nil, false)
 
       # Deprecated. Kept for backward compatibility.
       SimpleScanner2 = SimpleScanner # :nodoc:
@@ -544,7 +544,7 @@ class ERB
           end
         end
       end
-      Scanner.regist_scanner(ExplicitScanner, '-', false)
+      Scanner.register_scanner(ExplicitScanner, '-', false)
     end
 
     class Buffer # :nodoc: