Fix a valgrind Unitialized Memory Read seen in various places, e.g.
Fix a valgrind Unitialized Memory Read seen in various places, e.g.

basic_tests.py   4
==14087== Conditional jump or move depends on uninitialised value(s)
==14087==    at 0x4E90B2D: do_open (lock.c:570)
==14087==    by 0x4E91DEE: svn_wc_adm_open_anchor (lock.c:1151)
==14087==    by 0x4C5850E: svn_client__update_internal (update.c:146)
==14087==    by 0x4C58F52: svn_client_update3 (update.c:346)
==14087==    by 0x41A70A: svn_cl__update (update-cmd.c:84)
==14087==    by 0x411CAB: main (main.c:2123)

* subversion/libsvn_subr/question.c (svn_wc_check_wc): Set format value
   before returning an error.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@876326 13f79535-47bb-0310-9956-ffa450edef68

YueLinHo/Subversion,wbond/subversion,wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,wbond/subversion,wbond/subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion