CI: Fix pep8 errors in 2-connected topology generator

Reviewed-By: Martin Basti <mbasti@redhat.com>

ipatests/test_integration/tasks.py

@@ -857,6 +857,7 @@ def tree2_topo(master, replicas):
         yield master, replica
         master = replica
 
+
 @_topo('2-connected')
 def two_connected_topo(master, replicas):
     r"""No replica has more than 4 agreements and at least two
@@ -892,24 +893,24 @@ def two_connected_topo(master, replicas):
 
         v2 = pool.pop(0)
         yield v0, v2
-        grow.append((v0,v2))
+        grow.append((v0, v2))
 
         v3 = pool.pop(0)
         yield v2, v3
         yield v1, v3
-        grow.append((v1,v3))
+        grow.append((v1, v3))
 
-        for (r,s) in grow:
+        for (r, s) in grow:
             t = pool.pop(0)
 
-            for (u,v) in [(r,t), (s,t)]:
+            for (u, v) in [(r, t), (s, t)]:
                 yield u, v
                 w = pool.pop(0)
                 yield u, w
                 x = pool.pop(0)
                 yield v, x
                 yield w, x
-                grow.append((w,x))
+                grow.append((w, x))
 
     except IndexError:
         return