dump strokeWidth in SkDumpCanvas

git-svn-id: http://skia.googlecode.com/svn/trunk@9756 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/samplecode/SamplePictFile.cpp b/samplecode/SamplePictFile.cpp
index c82d03e..847894c 100644
--- a/samplecode/SamplePictFile.cpp
+++ b/samplecode/SamplePictFile.cpp
@@ -49,6 +49,8 @@
             SkFILEStream stream(path);
             if (stream.isValid()) {
                 pic = SkNEW_ARGS(SkPicture, (&stream, NULL, &SkImageDecoder::DecodeMemory));
+            } else {
+                SkDebugf("coun't load picture at \"path\"\n", path);
             }
 
             if (false) { // re-record