Don't try to free() an address returned by mmap().  This appears to be triggered by the same .o being included twice on the command line.
Don't try to free() an address returned by mmap().  This appears to be
triggered by the same .o being included twice on the command line.

Found by:	Nima Misaghian at Sandvine
Reviewed by:	kientzle, kaiw
Approved by:	re
MFC after:	1 week

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase