Pull up r25679 from trunk

Pull up r25679 from trunk

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 r25679 | ghudson | 2012-02-07 10:45:59 -0500 (Tue, 07 Feb 2012) | 9 lines

 ticket: 7088
 subject: Fix uninitialized variable warning in trval.c
 target_version: 1.10.1
 tags: pullup

 gcc -O3 is agressive enough to detect that do_cons() doesn't always
 set the value of rlen2, so trval2() gets a maybe-uninitialized
 warning.  Squash it by initializing rlen2.

ticket: 7088
version_fixed: 1.10.1
status: resolved

git-svn-id: svn://anonsvn.mit.edu/krb5/branches/krb5-1-10@25683 dc483132-0cff-0310-8789-dd5450dbe970