(#5635)  Make ec2_key_pair[file] a synonym for ec2_keypair[file].
(#5635)  Make ec2_key_pair[file] a synonym for ec2_keypair[file].

htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor,htcondor/htcondor