Fix a mechanism parsing

Author: seanthegeek

CHANGELOG.md

@@ -30,6 +30,17 @@
          "hosts": {
            "mx1.example.com": ["203.0.113.10"]
          }
+       },
+       {
+         "mechanism": "a",
+         "value": "example.com",
+         "dns_lookups": 1,
+         "void_dns_lookups": 0,
+         "action", "pass",
+         "addresses": [
+          "23.192.228.80",
+          "2600:1406:5e00:6::17ce:bc12"
+        ]
        }
      ]
      ```

checkdmarc/spf.py

@@ -416,12 +416,12 @@ def parse_spf_record(
                 pairs = [
                     ("mechanism", mechanism),
                     ("value", value),
-                    ("addresses", a_records),
                     ("dns_lookups", mechanism_dns_lookups),
                     ("void_dns_lookups", mechanism_void_dns_lookups),
                     ("action", action),
+                    ("addresses", a_records),
                 ]
-                parsed["mechanisms"].append(pairs)
+                parsed["mechanisms"].append(OrderedDict(pairs))
 
             elif mechanism == "mx":
                 mechanism_dns_lookups += 1