render_pdfs cull rect output formated better

tools/render_pdfs_main.cpp

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkCanvas.h"
 #include "SkCommandLineFlags.h"
 #include "SkDocument.h"
@@ skipping 236 matching lines @@
         }
 
         SkAutoTUnref<SkPicture> picture(
                 SkPicture::CreateFromStream(&inputStream));
         if (NULL == picture.get()) {
             SkDebugf("Could not read an SkPicture from %s\n",
                      files[i].c_str());
             ++failures;
             continue;
         }
-        SkDebugf("[%f,%f,%f,%f] %-*s", 
+        SkDebugf("[%6g %6g %6g %6g] %-*s",
             picture->cullRect().fLeft, picture->cullRect().fTop,
             picture->cullRect().fRight, picture->cullRect().fBottom,
             maximumPathLength, basename.c_str());
 
         SkAutoTDelete<SkWStream> stream(open_stream(outputDir, files[i]));
         if (!stream.get()) {
             ++failures;
             continue;
         }
         if (!pdf_to_stream(picture, stream.get(), encode_to_dct_data)) {
@@ skipping 30 matching lines @@
         return -1;
     }
 #endif
     return 0;
 }
 #if !defined SK_BUILD_FOR_IOS
 int main(int argc, char * const argv[]) {
     return tool_main(argc, (char**) argv);
 }
 #endif