diff --git a/WHATSNEW b/WHATSNEW
index c779be6a7..ea3b7c031 100644
--- a/WHATSNEW
+++ b/WHATSNEW
@@ -31,7 +31,10 @@ Fixed bugs:
    equaled its capacity.
    
  * Regression : ant -diagnostics was returning with exit code 1
-   Bugzilla Report 48782  
+   Bugzilla Report 48782
+   
+*  Fix for exec task sometimes inserts extraneous newlines
+   Bugzilla Report 48746      
 
 Other changes:
 --------------
diff --git a/src/main/org/apache/tools/ant/taskdefs/PumpStreamHandler.java b/src/main/org/apache/tools/ant/taskdefs/PumpStreamHandler.java
index 46576d475..a47efd3c4 100644
--- a/src/main/org/apache/tools/ant/taskdefs/PumpStreamHandler.java
+++ b/src/main/org/apache/tools/ant/taskdefs/PumpStreamHandler.java
@@ -238,7 +238,7 @@ public class PumpStreamHandler implements ExecuteStreamHandler {
         final Thread result
             = new ThreadWithPumper(new StreamPumper(is, os,
                                                     closeWhenExhausted,
-                                                    Os.isFamily("windows")));
+                                                    true));
         result.setDaemon(true);
         return result;
     }