From ff88d9da166c9779d21bb72d4fca2c55057c18ba Mon Sep 17 00:00:00 2001
From: Paul Beckingham <paul@beckingham.net>
Date: Mon, 25 May 2015 09:22:14 -0400
Subject: [PATCH] Bug: ::execute concatenates output

- The ::execute function concatenates output to the std::string provided, which
  is almost never wanted. Now it clears first.
---
 src/util.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/util.cpp b/src/util.cpp
index b4c048668..3cd9906a1 100644
--- a/src/util.cpp
+++ b/src/util.cpp
@@ -289,6 +289,7 @@ int execute (
     close (pin[1]);
   }
 
+  output = "";
   read_retval = -1;
   written = 0;
   while (read_retval != 0 || input.size () != written)