Sort package lists when searching or showing objects

Fixes #135
Fixes #214

system/t11_package/search.py

@@ -1,16 +1,11 @@
 from lib import BaseTest
 
 
-def sortLines(_, s):
-    return "\n".join(sorted(s.split("\n")))
-
-
 class SearchPackage1Test(BaseTest):
     """
     search package: regular search
     """
     fixtureDB = True
-    outputMatchPrepare = sortLines
     runCmd = "aptly package search '$$Architecture (i386), Name (% *-dev)'"
 
 
@@ -35,7 +30,6 @@ class SearchPackage4Test(BaseTest):
     search package: by dependency
     """
     fixtureDB = True
-    outputMatchPrepare = sortLines
     runCmd = "aptly package search coreutils"
 
 
@@ -44,7 +38,6 @@ class SearchPackage5Test(BaseTest):
     search package: with format
     """
     fixtureDB = True
-    outputMatchPrepare = sortLines
     runCmd = "aptly package search -format='{{.Package}}#{{.Version}}' '$$Architecture (i386), Name (% *-dev)'"
 
 
@@ -53,5 +46,4 @@ class SearchPackage6Test(BaseTest):
     search package: no query
     """
     fixtureDB = True
-    outputMatchPrepare = sortLines
     runCmd = "aptly package search"