Add newline after error messages in import

[#148954495] Error messages should end with a line break to make import more readable

Signed-off-by: Phil Goodwin <pgoodwin@pivotal.io>

commands/import.go

@@ -70,8 +70,8 @@ func setCredentials(bulkImport models.CredentialBulkImport) {
 				return
 			}
 			failure := fmt.Sprintf("Credential '%s' at index %d could not be set: %v", name, i, err)
-			fmt.Println(failure)
-			errors = append(errors, " - " + failure)
+			fmt.Println(failure + "\n")
+			errors = append(errors, " - "+failure)
 			failed++
 			continue
 		} else {

commands/import_test.go

@@ -113,7 +113,9 @@ Failed to set: 0
 
 			session := runCommand("import", "-f", "../test/test_import_partial_fail_set.yml")
 			successfulSetMessage := `Credential '/test/invalid_type' at index 0 could not be set: The request does not include a valid type. Valid values include 'value', 'json', 'password', 'user', 'certificate', 'ssh' and 'rsa'.
+
 Credential '/test/invalid_type1' at index 1 could not be set: The request does not include a valid type. Valid values include 'value', 'json', 'password', 'user', 'certificate', 'ssh' and 'rsa'.
+
 id: 5a2edd4f-1686-4c8d-80eb-5daa866f9f86
 name: /test/user
 type: user