Merge pull request #96 from yucongalicechen/fix2

correct output directory docstring

src/diffpy/labpdfproc/tools.py

@@ -17,15 +17,14 @@ def set_output_directory(args):
     args argparse.Namespace
         the arguments from the parser
 
-    Returns
-    -------
-    pathlib.PosixPath that contains the full path of the output directory
-
     it is determined as follows:
     If user provides an output directory, use it.
     Otherwise, we set it to the current directory if nothing is provided.
     We then create the directory if it does not exist.
 
+    Returns
+    -------
+    a Path object that contains the full path of the output directory
     """
     output_dir = Path(args.output_directory).resolve() if args.output_directory else Path.cwd().resolve()
     output_dir.mkdir(parents=True, exist_ok=True)