typo fix.

diff --git a/src/png2swf.doc b/src/png2swf.doc
index 090172e..b228a17 100644 (file)
--- a/src/png2swf.doc
+++ b/src/png2swf.doc
@@ -1,6 +1,6 @@
 Usage: %s [-X width] [-Y height] [-o file.swf] [-r rate] file1.png [file2.png...]
 
-Takes a number of gif files and converts them to a swf movie, one
+Takes a number of png files and converts them to a swf movie, one
 picture per frame.
 
 This tools converts png image files into an SWF animation. It takes any