+<br /> <br />
+The -d option enables the debug printing. The argument for the -d option
+is a string that is used to match the output debug. The example "*" will
+match for everything, and all debugs will be printed. If you want to
+limit the debugs you want to printout you can give for example a string
+like "*server*,*rng*" to match all functions, and filenames that has
+"server" or "rng" string in them. Others will not be printed out. You
+can freely define regural expressions as debug string.
+