minor wording change

shinchris · shinchris · commit 3a80a614f14b · 2016-09-08T15:37:35.000-07:00
diff --git a/samples/explore_workbook.py b/samples/explore_workbook.py
@@ -21,7 +21,8 @@
 parser.add_argument('--username', '-u', required=True, help='username to sign into server')
 parser.add_argument('--publish', '-p', metavar='FILEPATH', help='path to workbook to publish')
 parser.add_argument('--download', '-d', metavar='FILEPATH', help='path to save downloaded workbook')
-parser.add_argument('--preview-image', '-i', metavar='FILEPATH', help='path to save populated preview image')
+parser.add_argument('--preview-image', '-i', metavar='FILENAME',
+                    help='filename (a .png file) to save the preview image')
 parser.add_argument('--logging-level', '-l', choices=['debug', 'info', 'error'], default='error',
                     help='desired logging level (set to error by default)')
 args = parser.parse_args()
