[ADD] File merge function

Author: kang0921ok

src/com/yahoo/platform/yui/compressor/YUICompressor.java

@@ -201,8 +201,7 @@ public EvaluatorException runtimeError(String message, String sourceName,
                             if (outputFilename == null) {
                                 out = new BufferedWriter(new OutputStreamWriter(System.out, charset));
                             } else {
-                                out = new BufferedWriter
-                                        (new OutputStreamWriter(new FileOutputStream(outputFilename, true), charset));
+                                out = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(outputFilename, true), charset));
                                 if (mungemap != null) {
                                     mungemap.write("\n\nFile: "+outputFilename+"\n\n");
                                 }
@@ -229,9 +228,8 @@ public EvaluatorException runtimeError(String message, String sourceName,
 
                         if (outputFilename == null) {
                             out = new BufferedWriter(new OutputStreamWriter(System.out, charset));
-                        }  else {
-                            out = new BufferedWriter
-                                    (new OutputStreamWriter(new FileOutputStream(outputFilename), charset));
+                        } else {
+                            out = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(outputFilename), charset));
                         }
 
                         compressor.compress(out, linebreakpos);
@@ -308,4 +306,4 @@ private static void usage() {
                         + "option is required. Otherwise, the 'type' option is required only if the input\n"
                         + "file extension is neither 'js' nor 'css'.");
     }
-}
+}