[FIX] setup: atom doesn't want to use hard tabs even when told to

This is now the 2d stupidest commit I ever did

setup/package.dfcentos

@@ -31,7 +31,7 @@ RUN yum install -d 0 -e 0 epel-release -y && \
 		python-requests \
 		python-vobject \
 		python-werkzeug \
-                python-xlwt \
+		python-xlwt \
 		python-yaml \
 		pytz \
 		postgresql \