Make flake8 happy

var/spack/repos/builtin/packages/bertini/package.py

@@ -24,6 +24,7 @@
 ##############################################################################
 from spack import *
 
+
 class Bertini(Package):
     """Bertini is a general-purpose solver, written in C, that was created
     for research about polynomial continuation. It solves for the numerical

var/spack/repos/builtin/packages/flex/package.py

@@ -24,6 +24,7 @@
 ##############################################################################
 from spack import *
 
+
 class Flex(Package):
     """Flex is a tool for generating scanners."""