The cert plugin only worked OK with decimal certificate serial numbers.
This patch allows specifying the serial number in hexadecimal, too. The
conversion now works such that:
* with no explicit radix, a best-effort conversion is done using int(str,
0) in python. If the format is ambiguous, decimal takes precedence.
* a hexadecimal radix can be specified explicitly with the traditional
0x prefix
https://fedorahosted.org/freeipa/ticket/958https://fedorahosted.org/freeipa/ticket/953