skimage: revert r9642



git-svn-id: http://skia.googlecode.com/svn/trunk@9647 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/tools/skimage_main.cpp b/tools/skimage_main.cpp
index b115392..107d3bf 100644
--- a/tools/skimage_main.cpp
+++ b/tools/skimage_main.cpp
@@ -515,8 +515,7 @@
                 decodeFileAndWrite(fullname.c_str(), outDirPtr);
             } while (iter.next(&filename));
         } else {
-            // FLAGS_readPath[i] is an empty or nonexistent directory,
-            // so do nothing.
+            decodeFileAndWrite(FLAGS_readPath[i], outDirPtr);
         }
     }