Fix uninitialised memory reads in switch.  Found by valgrind.
Fix uninitialised memory reads in switch.  Found by valgrind.

* subversion/libsvn_client/switch.c
  (svn_client__switch_internal): Initialise sleep_here.

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion