diff --git a/clite/core.js b/clite/core.js
index 0261add..2de9782 100644
--- a/clite/core.js
+++ b/clite/core.js
@@ -1,6 +1,6 @@
 var clite = {
 	state:{
-		version:'0.2-3',
+		version:'0.3-1',
 		isinit:false,
 		runlevel:1
 	},
diff --git a/readme-libs.txt b/readme-libs.txt
index b43ffa4..a27ff4a 100644
--- a/readme-libs.txt
+++ b/readme-libs.txt
@@ -284,13 +284,18 @@ stdio (libio.so): io.include('stdio')
  isattty(fd)
 	returns true if fd refers to a tty.
 
- fprintf(fd,format,args)
+ vfprintf(fd,format,args)
 	Print formatted text to the file at fd.
-	Actually formatting is a work in progress, ignore the args.
+	args is an array of arguments for inserting into the formatted
+	 output.
 	Returns true on success.
 
- printf(fmt,args)
-	Equivalent to fprintf(io.stdout,fmt,args);
+ fprintf(fd,format,...)
+	Similar to vfprintf, but accepts the format arguments as a
+	 variable number of arguments to the function itself.
+
+ printf(fmt,...)
+	Equivalent to fprintf(io.stdout,fmt,...);
 
 term (libterm.so): io.include('term')
  Provides access to raw terminal and tty functions.