Make the regression test suite print the output of commands when running
in verbose mode, and the expected pattern when failing to match stderr.

* subversion/tests/cmdline/checkout_tests.py
  (test_stderr): When failing to match an expected pattern in stderr, print
    the expected pattern.
* subversion/tests/cmdline/svntest/main.py
  (run_command_stdin): In verbose mode, print the command's stdout and stderr.

Index: subversion/tests/cmdline/checkout_tests.py
===================================================================
--- subversion/tests/cmdline/checkout_tests.py	(revision 31711)
+++ subversion/tests/cmdline/checkout_tests.py	(working copy)
@@ -38,6 +38,9 @@ def test_stderr(re_string, stderr):
   for line in stderr:
     if exp_err_re.search(line):
       return
+  if svntest.main.verbose_mode:
+    map(sys.stdout.write, stderr)
+    print "Expected stderr reg-ex: '" + re_string + "'"
   raise svntest.Failure("Checkout failed but not in the expected way")
 
 #----------------------------------------------------------------------
Index: subversion/tests/cmdline/svntest/main.py
===================================================================
--- subversion/tests/cmdline/svntest/main.py	(revision 31711)
+++ subversion/tests/cmdline/svntest/main.py	(working copy)
@@ -441,9 +441,12 @@ def run_command_stdin(command, error_exp
   if verbose_mode:
     stop = time.time()
     print '<TIME = %.6f>' % (stop - start)
+    map(sys.stdout.write, stdout_lines)
+    map(sys.stdout.write, stderr_lines)
 
   if (not error_expected) and (stderr_lines):
-    map(sys.stdout.write, stderr_lines)
+    if not verbose_mode:
+      map(sys.stdout.write, stderr_lines)
     raise Failure
 
   return exit_code, stdout_lines, stderr_lines