Simplified string conversion

runtime/src/log.rs

@@ -80,10 +80,7 @@ fn convert_log_path_to_string(log_path: &FileSpec) -> String {
     let log_path = log_path.as_pathbuf(None);
     match log_path.canonicalize() {
         // Case: The path exists:
-        Ok(log_path) => match log_path.to_str() {
-            Some(path_string) => path_string.to_string(),
-            None => String::from(""),
-        }.to_string(),
+        Ok(log_path) => log_path.to_str().unwrap().to_string(),
 
         // Case: The path does not exist. Let's try to build the
         // absolute path without touching the file system: