CDRIVER-5844 fix macOS format specifier (#1819)

* use `PRIu32` to match type of `SecExternalItemType`

* include string representation

* replace "Please file a JIRA" with "Type is not supported"

Author: kevinAlbs

src/libmongoc/src/mongoc/mongoc-secure-transport.c

@@ -309,6 +309,27 @@ _mongoc_secure_transport_extract_subject (const char *filename, const char *pass
    return retval;
 }
 
+static const char *
+SecExternalItemType_to_string (SecExternalItemType value)
+{
+   switch (value) {
+   case kSecItemTypeUnknown:
+      return "kSecItemTypeUnknown";
+   case kSecItemTypePrivateKey:
+      return "kSecItemTypePrivateKey";
+   case kSecItemTypePublicKey:
+      return "kSecItemTypePublicKey";
+   case kSecItemTypeSessionKey:
+      return "kSecItemTypeSessionKey";
+   case kSecItemTypeCertificate:
+      return "kSecItemTypeCertificate";
+   case kSecItemTypeAggregate:
+      return "kSecItemTypeAggregate";
+   default:
+      return "Unknown";
+   }
+}
+
 bool
 mongoc_secure_transport_setup_certificate (mongoc_stream_tls_secure_transport_t *secure_transport,
                                            mongoc_ssl_opt_t *opt)
@@ -332,7 +353,9 @@ mongoc_secure_transport_setup_certificate (mongoc_stream_tls_secure_transport_t
    }
 
    if (type != kSecItemTypeAggregate) {
-      MONGOC_ERROR ("Cannot work with keys of type \"%d\". Please file a JIRA", type);
+      MONGOC_ERROR ("Cannot work with keys of type %s (%" PRIu32 "). Type is not supported",
+                    SecExternalItemType_to_string (type),
+                    type);
       CFRelease (items);
       return false;
    }