spell fix

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@31387 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,6 +1,6 @@
 Sat Apr 30 00:34:56 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>
 
-	* include/ruby/win32.h: remove redundunt declaration of
+	* include/ruby/win32.h: remove redundant declaration of
 	  rb_w32_time_subtract().
 
 Sat Apr 30 00:16:40 2011  KOSAKI Motohiro  <kosaki.motohiro@gmail.com>