show os.spawn cmdline in error

diff --git a/python/walmgr.py b/python/walmgr.py
index d44466ed58361a41bf5616dba47b0b9513beb045..bf9cf7a0937c50429fe73f37302f65ae6b9e0d4e 100755 (executable)
--- a/python/walmgr.py
+++ b/python/walmgr.py
@@ -261,7 +261,7 @@ class WalMgr(skytools.DBScript):
             return
         res = os.spawnvp(os.P_WAIT, cmdline[0], cmdline)
         if res != 0:
-            self.log.fatal("exec failed, res=%d" % res)
+            self.log.fatal("exec failed, res=%d (%s)" % (res, repr(cmdline)))
             sys.exit(1)
 
     def chdir(self, loc):