--- sprintf version 9 Fri Sep 08 14:58:08 +0000 2006
+++ sprintf version 26 Thu Oct 02 19:32:08 +0000 2008
@@ -1,4 +1,13 @@
-%s => string
-%d => number
-%f => float
+%b => Binary integer
+%c => Single character
+%d => Decimal integer
+%e => Decimal integer displayed in exponential form
+%f => Floating point number
+%g => Same as %e if exponent is less than -4, %f otherwise
+%o => Octal integer
+%s => String
+%u => Unsigned decimal integer
+%x => Hexadecimal integer
+%02d => 0 padded two digits
+%.02f => round to the hundredths
