RFE: add coredump test

[rprobaina]

Simple test case to verify that a record is collected when a process ends abnormally, for instance, when a core dump is generated.

This test case adds full coverage to the following auditsc.c functions, which any other test case of the test suite has not exercised:

• audit_core_dumps()
• audit_log_task()

Signed-off-by: Ricardo Robaina [email protected]