Index: subversion/tests/cmdline/svntest/main.py
===================================================================
--- subversion/tests/cmdline/svntest/main.py	(revision 22938)
+++ subversion/tests/cmdline/svntest/main.py	(working copy)
@@ -291,6 +291,8 @@ def run_command_stdin(command, error_exp
     exit_signal = wait_code % 256
 
     if exit_signal != 0:
+      sys.stdout.write("".join(stdout_lines))
+      sys.stderr.write("".join(stderr_lines))
       raise SVNProcessTerminatedBySignal
 
   if verbose_mode: