Added the comment "remove a 'new line'" at the end of usage.

diff --git a/pl.py b/pl.py
index 9a7920c..86af355 100755
--- a/pl.py
+++ b/pl.py
@@ -78,7 +78,7 @@ def main():
        " NOTES:\n" + \
        "SCORE must be between 0 and 1, 1 is the perfect match (useless):\n" + \
        ""
-    parser.usage = parser.usage[:-1]
+    parser.usage = parser.usage[:-1]  # remove the final \n
     parser.add_option('-d', '--delete', default=False,
        action='store_true', dest='delete',
        help="check - delete entries that were not found")