Fix the has_broken_mac_openssl function for the pre-release version of OS X

Hi sstephenson,

Since there is an updated version of openssl bundled with OS X 10.8.4 (12E52), the has_broken_mac_openssl does not work properly as before.

I've made a modification to treat all the 0.9.8 series as broken libraries.
Please have take a look and see if it could be merged to the official version.

Thank you!