flush will be called in any case, make this more explicit

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@905217 13f79535-47bb-0310-9956-ffa450edef68

src/main/org/apache/tools/ant/taskdefs/optional/ReplaceRegExp.java

@@ -448,7 +448,6 @@ public class ReplaceRegExp extends Task {
                     }
                 } while (c >= 0);
 
-                bw.flush();
             } else {
                 String buf = FileUtils.safeReadFully(br);
 
@@ -459,9 +458,10 @@ public class ReplaceRegExp extends Task {
                 }
 
                 bw.write(res);
-                bw.flush();
             }
 
+            bw.flush();
+
             r.close();
             r = null;
             w.close();