enhance debug logging for return status / content-type with component of url

[ryran]

New way makes it more clear what url the return status & content-type are for, i.e.:

[INFO   ] rhsda: Getting https://access.redhat.com/labs/securitydataapi/cve/CVE-2015-3253.json
[INFO   ] rhsda: Getting https://access.redhat.com/labs/securitydataapi/cve/CVE-2015-7501.json
[INFO   ] rhsda: Getting https://access.redhat.com/labs/securitydataapi/cve/CVE-2016-1950.json
[INFO   ] rhsda: Getting https://access.redhat.com/labs/securitydataapi/cve/CVE-2016-2107.json
[INFO   ] rhsda: Getting https://access.redhat.com/labs/securitydataapi/cve/CVE-2016-3473.json
[INFO   ] rhsda: Getting https://access.redhat.com/labs/securitydataapi/cve/CVE-2016-3505.json
[INFO   ] rhsda: Getting https://access.redhat.com/labs/securitydataapi/cve/CVE-2016-3551.json
[INFO   ] rhsda: Getting https://access.redhat.com/labs/securitydataapi/cve/CVE-2016-5488.json
[DEBUG  ] rhsda: Return '.../CVE-2015-3253.json': Status 200, Content-Type application/json
[DEBUG  ] rhsda: Return '.../CVE-2015-7501.json': Status 200, Content-Type application/json
[INFO   ] rhsda: Getting https://access.redhat.com/labs/securitydataapi/cve/CVE-2016-5495.json
[DEBUG  ] rhsda: Return '.../CVE-2016-1950.json': Status 200, Content-Type application/json
[INFO   ] rhsda: Getting https://access.redhat.com/labs/securitydataapi/cve/CVE-2016-5500.json
[DEBUG  ] rhsda: Return '.../CVE-2016-2107.json': Status 200, Content-Type application/json
[INFO   ] rhsda: Getting https://access.redhat.com/labs/securitydataapi/cve/CVE-2016-5506.json
[INFO   ] rhsda: Getting https://access.redhat.com/labs/securitydataapi/cve/CVE-2016-5511.json
[DEBUG  ] rhsda: Return '.../CVE-2016-3551.json': Status 404, Content-Type text/html