ChangeLog: fix typos

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@35803 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -14,11 +14,10 @@ Sat May 26 13:40:29 2012  Koichi Sasada  <ko1@atdot.net>
 	    FrameInfo#filepath: full filepath.
 	    FrameInfo#iseq: iseq if it is iseq frame (defined by ruby script)
 	    FrameInfo#to_s: return caller() method style string.
-	  RubyVM::FrameInfoFrameInfo.caller(n, lev) returns array of
-	  FrameInfo objects.  The name "RubyVM::FrameInfoFrameInfo.caller"
-	  is long and ambiguous (same as caller() method), we need to change
-	  the name before Ruby 2.0 release.
-	  Good names or comments are welcome.
+	  RubyVM::FrameInfo.caller(n, lev) returns array of FrameInfo objects.
+	  The name "RubyVM::FrameInfo.caller" is long and ambiguous (it is
+	  confusing with Kernel::caller() method), we need to change the name
+	  before Ruby 2.0 release. Good names or comments are welcome.
 
 	* test/ruby/test_backtrace.rb: add a test for above change.