[ruby/zlib] Allow Zlib.crc32 and .adler32 to accept IO instance
This reads from the IO in 8192 byte chunks, so you don't need to have the entire string in memory.
Fixes #16
https://github.com/ruby/zlib/commit/ba9793c550
[ruby/zlib] Allow Zlib.crc32 and .adler32 to accept IO instance
This reads from the IO in 8192 byte chunks, so you don't need to
have the entire string in memory.
Fixes #16
https://github.com/ruby/zlib/commit/ba9793c550