Remove the dot for homogeneity

pubs/commands/import_cmd.py

@@ -22,7 +22,7 @@ _IGNORING_MSG = " Ignoring it."
 def parser(subparsers, conf):
     parser = subparsers.add_parser(
         'import',
-        help='import paper(s) to the repository.')
+        help='import paper(s) to the repository')
     parser.add_argument(
         'bibpath',
         help=("path to bibtex, bibtexml or bibyaml file, or a directory "

pubs/commands/statistics_cmd.py

@@ -6,7 +6,7 @@ from .. import color
 def parser(subparsers, conf):
     parser = subparsers.add_parser(
         'statistics',
-        help="show statistics on the repository.")
+        help="show statistics on the repository")
     return parser