From 3acc8adcad4066329913cf9ad4e1ccc535f73032 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <eelco.dolstra@logicblox.com>
Date: Thu, 15 Nov 2012 13:55:02 +0100
Subject: [PATCH] Add some debug code

---
 src/libutil/util.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/libutil/util.cc b/src/libutil/util.cc
index bb59b09240..f311b1ae37 100644
--- a/src/libutil/util.cc
+++ b/src/libutil/util.cc
@@ -652,7 +652,7 @@ void AutoCloseFD::close()
     if (fd != -1) {
         if (::close(fd) == -1)
             /* This should never happen. */
-            throw SysError("closing file descriptor");
+            throw SysError(format("closing file descriptor %1%") % fd);
         fd = -1;
     }
 }