Update README.rst

Author: designerror

README.rst

@@ -28,7 +28,7 @@ Installation and upgrade
 
 .. code:: bash
 
-    curl https://bootstrap.pypa.io/ez_setup.py -o \-| python
+    curl https://bootstrap.pypa.io/ez_setup.py -o - | python
     python setup.py install --prefix=/opt/setuptools
     sudo easy_install webdavclient