Minor improvements in error/debug tracking.
Minor improvements in error/debug tracking.

* subversion/libsvn_subr/sqlite.c:
  (sqlite_tracer): use SVN_DBG() to standardize, and to filter out any
    traced statements inside the test suite
  (svn_sqlite_bindf, svn_sqlite__with_transaction): use svn_error_return
    where appropriate
  (internal_open): switch to svn_dirent_local_style

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