Change default s/key hash to MD5 (same as sys-auth/skey).

--- otpCalc-0.97-orig/callbacks.c
+++ otpCalc-0.97/callbacks.c
@@ -90,7 +90,7 @@
 	unsigned char results[9];
 
 
-	hashes[SKEY] = md4lite;
+	hashes[SKEY] = md5lite;
 	hashes[MD4] = md4lite;
 	hashes[MD5] = md5lite;
 	hashes[RMD160] = rmd160lite;
--- otpCalc-0.97-orig/otpCalc.man
+++ otpCalc-0.97/otpCalc.man
@@ -30,7 +30,7 @@
 cb l
 cb l
 cb l.
-s/key#MD4
+s/key#MD5
 otp-md4#MD4
 otp-md5#MD5
 otp-rmd160#RIPEMD-160