[devel] Rename libpng.txt to libpng-manual.txt
diff --git a/example.c b/example.c
index 1a41807..1ff53e5 100644
--- a/example.c
+++ b/example.c
@@ -10,7 +10,7 @@
*/
/* This is an example of how to use libpng to read and write PNG files.
- * The file libpng.txt is much more verbose then this. If you have not
+ * The file libpng-manual.txt is much more verbose then this. If you have not
* read it, do so first. This was designed to be a starting point of an
* implementation. This is not officially part of libpng, is hereby placed
* in the public domain, and therefore does not require a copyright notice.
