merges r21510 from trunk into ruby_1_9_1.
gc.c (negative_size_allocation_error_with_gvl): abolish a warning. (negative_size_allocation_error): ditto.
ext/openssl/ossl.c (ossl_raise): ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_1@21562 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merges r21510 from trunk into ruby_1_9_1.
gc.c (negative_size_allocation_error_with_gvl): abolish a warning.
(negative_size_allocation_error): ditto.
ext/openssl/ossl.c (ossl_raise): ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_1@21562 b2dd03c8-39d4-4d8f-98ff-823fe69b080e