* array.c: Fix typo in class documentation

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@39322 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

array.c

@@ -5241,7 +5241,7 @@ rb_ary_drop_while(VALUE ary)
  *     #=> [[nil, nil, nil], [nil, nil, nil], [nil, nil, nil]]
  *
  *  An array can also be created by using the Array() method, provided by
- *  Kernel, which calls  #to_ary or #to_a on it's argument.
+ *  Kernel, which tries to call #to_ary, then #to_a on its argument.
  *
  *	Array({:a => "a", :b => "b"}) #=> [[:a, "a"], [:b, "b"]]
  *