dump: minor cleanups

doc/050_restore.rst

@@ -176,8 +176,8 @@ To include the folder content at the root of the archive, you can use the ``<sna
     $ restic -r /srv/restic-repo dump latest:/home/other/work / > restore.tar
 
 It is also possible to ``dump`` the contents of a selected snapshot and folder
-structure to a file using the ``--target`` flag. The ``dump`` will fail if the 
-file exists.
+structure to a file using the ``--target`` flag. The ``dump`` command will fail
+if the already file exists.
 
 .. code-block:: console
     $ restic -r /srv/restic-repo dump latest / --target /home/linux.user/output.tar -a tar