Updated the comments.

git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@2134 3789f03b-4d11-0410-bbf8-ca57d06f2519
diff --git a/common/rfb/ScaledPixelBuffer.h b/common/rfb/ScaledPixelBuffer.h
index a29cbdf..ca0ddf5 100644
--- a/common/rfb/ScaledPixelBuffer.h
+++ b/common/rfb/ScaledPixelBuffer.h
@@ -78,7 +78,7 @@
     virtual void setScaleRatio(double scale_ratio);
 
     // Scale rect from the source image buffer to the destination buffer
-    // using bilinear interpolation
+    // using the current interpolation method
     virtual void scaleRect(const Rect& r);
 
     // Calculate the scaled image rectangle which depend on the source