Fix Windows build which was broken in r32017 (support Berkeley DB 4.7).  
Fix Windows build which was broken in r32017 (support Berkeley DB 4.7).  

* subversion/libsvn_fs_base/fs.c
  (base_hotcopy): VS2005 chokes on the nested macros introduced in r32017.
  Not sure if this is a C89 limitation or something odd with VS2005, but
  removing the check_env_flags() call from within SVN_ERR() and checking
  for an error separately fixes the build.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@872103 13f79535-47bb-0310-9956-ffa450edef68

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