Allocate enough elements for array of func ptrs, bug 123976.

--- otpCalc-0.97.orig/callbacks.c
+++ otpCalc-0.97/callbacks.c
@@ -81,7 +81,7 @@
 void calculate(void)
 {
 
-	void (*hashes[4])();
+	void (*hashes[5])();
 
 	gchar *challenge, *passwd, *message, *response;
 	struct tokens *set;