regarding char * vs. unsigned char * mismatch; submitted by Lyle
  Johnson <lyle.johnson@gmail.com> in [ruby-core:10416].

* ext/digest/sha1/sha1ossl.c (SHA1_Finish): Ditto.

* ext/digest/rmd160/rmd160ossl.c (RMD160_Finish): Ditto.

* ext/digest/digest.c (rb_digest_base_finish,
  rb_digest_base_update): Ditto.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@11902 b2dd03c8-39d4-4d8f-98ff-823fe69b080e