StateFile: use C++11 initializers

src/StateFile.cxx

@@ -42,9 +42,7 @@ StateFile::StateFile(AllocatedPath &&_path, unsigned _interval,
 	:TimeoutMonitor(_loop),
 	 path(std::move(_path)), path_utf8(path.ToUTF8()),
 	 interval(_interval),
-	 partition(_partition),
-	 prev_volume_version(0), prev_output_version(0),
-	 prev_playlist_version(0)
+	 partition(_partition)
 {
 }
 

src/StateFile.hxx

@@ -42,8 +42,8 @@ class StateFile final : private TimeoutMonitor {
 	 * These version numbers determine whether we need to save the state
 	 * file.  If nothing has changed, we won't let the hard drive spin up.
 	 */
-	unsigned prev_volume_version, prev_output_version,
-		prev_playlist_version;
+	unsigned prev_volume_version = 0, prev_output_version = 0,
+		prev_playlist_version = 0;
 
 public:
 	static constexpr unsigned DEFAULT_INTERVAL = 2 * 60;