exit properly

Kwpolska · Kwpolska · commit b391d061f018 · 2015-05-23T12:01:02.000+02:00
Signed-off-by: Chris Warrick &lt;kwpolska@gmail.com&gt;
diff --git a/nikola/plugins/command/rst2html/__init__.py b/nikola/plugins/command/rst2html/__init__.py
@@ -62,6 +62,6 @@ def _execute(self, options, args):
         html = b'<!DOCTYPE html>\n' + lxml.html.tostring(doc, encoding='utf8', method='html', pretty_print=True)
         print(html)
         if error_level < 3:
-            return 0
+            exit(0)
         else:
-            return 1
+            exit(1)
