test-prune-older: report cmd, not argv in exception

Signed-off-by: Rob Browning <rlb@defaultvalue.org>
Tested-by: Rob Browning <rlb@defaultvalue.org>

diff --git a/t/test-prune-older b/t/test-prune-older
index c54865c95bd4ea7b80ca540981508ca170a4597f..4ebc94cabf0e4771a563f05f8c240ceb7372e848 100755 (executable)
--- a/t/test-prune-older
+++ b/t/test-prune-older
@@ -50,7 +50,7 @@ def exo(cmd, stdin=None, stdout=True, stderr=False, shell=False, check=True):
     out, err = p.communicate()
     if check and p.returncode != 0:
         raise Exception('subprocess %r failed with status %d, stderr: %r'
-                        % (' '.join(argv), p.returncode, err))
+                        % (' '.join(map(quote, cmd)), p.returncode, err))
     return out, err, p
 
 def bup(*args):