Don't escape HTML entities in RSS feed output

There is a risk I guess that the the value and diff contain </pre>
which would break the sort of HTML content, but the important part
was to convert the ansi escapes codes rather than escape HTML.

The HTML escaping of the ansi_to_html module is also on a partial
escape, and not very robust. It might be worth using something like
htmlize or html_escape which provide full conversions to both
encoding and decoding HTML entities.

src/job.rs

@@ -189,8 +189,8 @@ Diff: <br>
 </pre>
 "#,
                              update_time.format("%d/%m/%Y %H:%M"),
-                             ansi_to_html::convert_escaped(value).unwrap().as_str(),
+                             value,
-                             ansi_to_html::convert_escaped(diff).unwrap().as_str()
+                             ansi_to_html::convert(diff, false, true).unwrap().as_str()
                 )
             )
             .build();
@@ -287,6 +287,21 @@ output_file = ./src/job_example.rss
         assert_eq!(job.last_value().unwrap(), "Version 1.64.0");
     }
 
+    #[test]
+    fn recover_value_from_channel_html_escapes() {
+        let conf = Conf::get_default_conf();
+        let output_file = NamedTempFile::new().unwrap();
+        let mut job_file = NamedTempFile::new().unwrap();
+        let mut job = Job::new("example", "selector", &conf);
+        job.output_file = Some(output_file.path().to_path_buf());
+        writeln!(job_file, "url = example").expect("write failed");
+        writeln!(job_file, "output_file = {}", output_file.path().display()).expect("write failed");
+        let value = "Update that contains <a href=\"#\">html</a><br>";
+        job.update(value, "diff");
+        let job2 = Job::from_file(job_file.path(), &conf).expect("Failed to read conf file");
+        assert_eq!(job2.last_value().unwrap(), value);
+    }
+
     #[test]
     fn new_updates_have_different_guids() {
         let conf = Conf::get_default_conf();