[Patch] use StringUtils in AntUnit

[Kev Jackson]

- use StringUtils.LINE_SEP instead of looking up 
System.getProperty("line.seperator") each time
- remove unused import statement

Kev
Index: 
D:/java_projects/ant-sandbox/antlibs/antunit/trunk/src/main/org/apache/ant/antunit/PlainAntUnitListener.java
===================================================================
--- 
D:/java_projects/ant-sandbox/antlibs/antunit/trunk/src/main/org/apache/ant/antunit/PlainAntUnitListener.java
        (revision 331224)
+++ 
D:/java_projects/ant-sandbox/antlibs/antunit/trunk/src/main/org/apache/ant/antunit/PlainAntUnitListener.java
        (working copy)
@@ -22,8 +22,8 @@
 import java.io.PrintWriter;
 import java.io.StringWriter;
 import java.text.NumberFormat;
-import java.util.HashMap;
 
+import org.apache.tools.ant.util.StringUtils;
 import org.apache.tools.ant.BuildException;
 
 /**
@@ -59,10 +59,9 @@
         if (out == null) {
             return; // Quick return - no output do nothing.
         }
-        String newLine = System.getProperty("line.separator");
         StringBuffer sb = new StringBuffer("Build File: ");
         sb.append(buildFile);
-        sb.append(newLine);
+        sb.append(StringUtils.LINE_SEP);
         try {
             out.write(sb.toString().getBytes());
             out.flush();
@@ -74,7 +73,6 @@
 
     public void endTestSuite(String buildFile) {
         long runTime = System.currentTimeMillis() - start;
-        String newLine = System.getProperty("line.separator");
         StringBuffer sb = new StringBuffer("Tests run: ");
         sb.append(runCount);
         sb.append(", Failures: ");
@@ -84,7 +82,7 @@
         sb.append(", Time elapsed: ");
         sb.append(nf.format(runTime/ 1000.0));
         sb.append(" sec");
-        sb.append(newLine);
+        sb.append(StringUtils.LINE_SEP);
 
 //        // append the err and output streams to the log
 //        if (systemOutput != null && systemOutput.length() > 0) {
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