Fix month/year units in getdate

Fix month/year units in getdate

pull up r25444 from trunk

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 r25444 | ghudson | 2011-11-06 00:32:34 -0500 (Sun, 06 Nov 2011) | 10 lines

 ticket: 7003
 subject: Fix month/year units in getdate
 target_version: 1.10
 tags: pullup

 getdate strings like "1 month" or "next year" would fail some of the
 time, depending on the value of stack garbage, because DSTcorrect()
 doesn't set *error on success and RelativeMonth() doesn't initialize
 error.  Make DSTcorrect() responsible for setting *error in all cases.

ticket: 7009
version_fixed: 1.9.3
status: resolved

git-svn-id: svn://anonsvn.mit.edu/krb5/branches/krb5-1-9@25461 dc483132-0cff-0310-8789-dd5450dbe970