doc: Fix KDF example for scrypt
CLA: trivial
@@ -166,7 +166,7 @@ Use PBKDF2 to create a hex-encoded derived key from a password and salt:
Use scrypt to create a hex-encoded derived key from a password and salt:
openssl kdf -keylen 64 -kdfopt pass:password -kdfopt salt:NaCl \
- -kdfopt N:1024 -kdfopt r:8 -kdfopt p:16 \
+ -kdfopt n:1024 -kdfopt r:8 -kdfopt p:16 \
-kdfopt maxmem_bytes:10485760 SCRYPT
=head1 NOTES
