Use the correct path (#149)

Co-authored-by: Sindre Sorhus <sindresorhus@gmail.com>

index.js

@@ -157,18 +157,20 @@ function registerListener(session, options, callback = () => {}) {
 				const message = pupa(errorMessage, {filename: path.basename(filePath)});
 				callback(new Error(message));
 			} else if (state === 'completed') {
+				const savePath = item.getSavePath();
+
 				if (process.platform === 'darwin') {
-					app.dock.downloadFinished(filePath);
+					app.dock.downloadFinished(savePath);
 				}
 
 				if (options.openFolderWhenDone) {
-					shell.showItemInFolder(filePath);
+					shell.showItemInFolder(savePath);
 				}
 
 				if (typeof options.onCompleted === 'function') {
 					options.onCompleted({
 						fileName: item.getFilename(),
-						path: item.getSavePath(),
+						path: savePath,
 						fileSize: item.getReceivedBytes(),
 						mimeType: item.getMimeType(),
 						url: item.getURL()