From cc8563cdf535edd0a94d5dbfe2113ffebbb961df Mon Sep 17 00:00:00 2001
From: Gintas Grigelionis <gintas@apache.org>
Date: Tue, 17 Apr 2018 20:57:44 +0200
Subject: [PATCH] Prefix was added twice to the first non-empty line

---
 src/main/org/apache/tools/ant/DefaultLogger.java | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/src/main/org/apache/tools/ant/DefaultLogger.java b/src/main/org/apache/tools/ant/DefaultLogger.java
index 3469379d7..0586cd445 100644
--- a/src/main/org/apache/tools/ant/DefaultLogger.java
+++ b/src/main/org/apache/tools/ant/DefaultLogger.java
@@ -268,9 +268,8 @@ public class DefaultLogger implements BuildLogger {
 
                 try (BufferedReader r =
                     new BufferedReader(new StringReader(event.getMessage()))) {
-
-                    message.append(r.lines().map(line -> prefix + line)
-                        .collect(Collectors.joining(System.lineSeparator(), prefix, "")));
+                    message.append(r.lines()
+                        .collect(Collectors.joining(System.lineSeparator() + prefix, prefix, "")));
                 } catch (IOException e) {
                     // shouldn't be possible
                     message.append(label).append(event.getMessage());