TestUtils: use try-with-resources instead of deprecated IOUtils#closeQuietly

(side-effect: close #28)

Author: PascalSchumacher

src/test/java/org/apache/commons/io/testtools/TestUtils.java

@@ -18,7 +18,6 @@
 
 import junit.framework.AssertionFailedError;
 import org.apache.commons.io.FileUtils;
-import org.apache.commons.io.IOUtils;
 import org.apache.commons.io.output.ByteArrayOutputStream;
 
 import java.io.*;
@@ -72,13 +71,10 @@ public static void createLineBasedFile(final File file, final String[] data) thr
         if (file.getParentFile() != null && !file.getParentFile().exists()) {
             throw new IOException("Cannot create file " + file + " as the parent directory does not exist");
         }
-        final PrintWriter output = new PrintWriter(new OutputStreamWriter(new FileOutputStream(file), "UTF-8"));
-        try {
+        try (final PrintWriter output = new PrintWriter(new OutputStreamWriter(new FileOutputStream(file), "UTF-8"))) {
             for (final String element : data) {
                 output.println(element);
             }
-        } finally {
-            IOUtils.closeQuietly(output);
         }
     }