naruse	2008-02-22 12:16:52 +0900 (Fri, 22 Feb 2008)

  New Revision: 15572

  Modified files:
    trunk/ChangeLog
    trunk/string.c

  Log:
    * string.c (rb_str_inspect): string of ascii incompatible encoding
      should be escaped and returned as US-ASCII encoding.

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/string.c?r1=15572&r2=15571&diff_format=u
  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/ChangeLog?r1=15572&r2=15571&diff_format=u