From 3bf1cf5dd432111e6d64b51753b171bc5f7f0770 Mon Sep 17 00:00:00 2001
From: Ben Brewer <ben.brewer@codethink.co.uk>
Date: Mon, 2 Jun 2014 10:56:01 +0100
Subject: Print errno when tbdiff-deploy fails to open stream

---
 tbdiff-deploy/main.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tbdiff-deploy/main.c b/tbdiff-deploy/main.c
index 283c5b4..228a753 100644
--- a/tbdiff-deploy/main.c
+++ b/tbdiff-deploy/main.c
@@ -43,7 +43,9 @@ main(int    argc,
 
 	int patch = open(argv[1], O_RDONLY);
 	if(patch < 0) {
-		fprintf(stderr, "Error: Can't open patch stream for reading.\n");
+		fprintf(stderr,
+                "Error: Can't open patch stream for reading (err=%d).\n",
+                errno);
 		return EXIT_FAILURE;
 	}
 
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