Fix system tests (whitespace).

system/t04_mirror/CreateMirror21Test_mirror_show

@@ -1,8 +1,8 @@
 Name: mirror21
 Archive Root URL: http://pkg.jenkins-ci.org/debian-stable/
 Distribution: ./binary/
-Components:
-Architectures:
+Components: 
+Architectures: 
 Download Sources: no
 Last update: never
 

system/t05_snapshot/list.py

@@ -89,4 +89,3 @@ class ListSnapshot7Test(BaseTest):
     """
     runCmd = "aptly -sort=planet snapshot list"
     expectedCode = 1
-