From dc5c83eb60f88934e4b99dec6b41aa248481d543 Mon Sep 17 00:00:00 2001
From: Peter Veenstra <qbix79@users.sourceforge.net>
Date: Tue, 22 May 2018 15:11:58 +0000
Subject: [PATCH] Only add return to buffer if it already contains data, which
 fixes extra return in generated autoexec.bat.

Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@4103
---
 src/misc/setup.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/misc/setup.cpp b/src/misc/setup.cpp
index 957ef08f..1c44ef7e 100644
--- a/src/misc/setup.cpp
+++ b/src/misc/setup.cpp
@@ -649,8 +649,8 @@ string Section_prop::GetPropValue(string const& _property) const {
 }
 
 bool Section_line::HandleInputline(string const& line) {
-	data+=line;
-	data+="\n";
+	if (!data.empty()) data += "\n"; //Add return to previous line in buffer
+	data += line;
 	return true;
 }