[snappy] duration: don't display hours if it is zero

[Luis de Bethencourt <luisbg src gnome org>]

commit b0a6c6ed118d6280ebec53c8672d7d1d8af7afde
Author: Alban Crequy <alban crequy collabora co uk>
Date:   Wed Dec 12 16:00:04 2012 +0000

    duration: don't display hours if it is zero

 src/user_interface.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)
---
diff --git a/src/user_interface.c b/src/user_interface.c
index d188d4b..22d59ac 100644
--- a/src/user_interface.c
+++ b/src/user_interface.c
@@ -727,7 +727,10 @@ position_ns_to_str (gint64 nanoseconds)
   minutes = seconds / SEC_IN_MIN;
   seconds = seconds - (minutes * SEC_IN_MIN);
 
-  return g_strdup_printf ("%d:%02d:%02ld", hours, minutes, seconds);
+  if (hours >= 1)
+    return g_strdup_printf ("%d:%02d:%02ld", hours, minutes, seconds);
+  else
+    return g_strdup_printf ("%02d:%02ld", minutes, seconds);
 }
 
 static void