Merge pull request #650 from ruby/rename-it

Avoid to use `it`

Author: hsbt

test/test_rake_file_list.rb

@@ -563,27 +563,27 @@ def test_enumeration_methods
     assert_equal ["a", "b"], b
     assert_equal FileList,  b.class
 
-    b = a.sort_by { |it| it }
+    b = a.sort_by { |i| i }
     assert_equal ["a", "b"], b
     assert_equal FileList,  b.class
 
-    b = a.select { |it| it == "b" }
+    b = a.select { |i| i == "b" }
     assert_equal ["b"], b
     assert_equal FileList,  b.class
 
-    b = a.select { |it| it.size == 1 }
+    b = a.select { |i| i.size == 1 }
     assert_equal ["a", "b"], b
     assert_equal FileList,  b.class
 
-    b = a.reject { |it| it == "b" }
+    b = a.reject { |i| i == "b" }
     assert_equal ["a"], b
     assert_equal FileList,  b.class
 
     b = a.grep(/./)
     assert_equal ["a", "b"], b
     assert_equal FileList,  b.class
 
-    b = a.partition { |it| it == "b" }
+    b = a.partition { |i| i == "b" }
     assert_equal [["b"], ["a"]], b
     assert_equal Array, b.class
     assert_equal FileList,  b[0].class