utils: fix writing alias rules

write_pair() ignored the 'tail' parameter, which resulted in writing
invalid alias rules (without the trailing comma).

Also add an alias to test/cleanprof.* to ensure it doesn't break again.

(cherry picked from commit ae4ab62855)

Acked-by: John Johansen <john.johansen@canonical.com>
Acked-by: Steve Beattie <steve@nxnw.org>
PR: https://gitlab.com/apparmor/apparmor/merge_requests/119

utils/apparmor/aa.py

@@ -3239,7 +3239,7 @@ def write_pair(prof_data, depth, allow, name, prefix, sep, tail, fn):
     if ref.get(name, False):
         for key in sorted(ref[name].keys()):
             value = fn(ref[name][key])  # eval('%s(%s)' % (fn, ref[name][key]))
-            data.append('%s%s%s%s%s%s' % (pre, allow, prefix, key, sep, value))
+            data.append('%s%s%s%s%s%s%s' % (pre, allow, prefix, key, sep, value, tail))
         if ref[name].keys():
             data.append('')
 

utils/test/cleanprof_test.in

@@ -1,6 +1,8 @@
 # A simple test comment which will persist
 #include <tunables/global>
 
+		alias /foo    ->    /bar	,
+
 /usr/bin/a/simple/cleanprof/test/profile {
 	# Just for the heck of it, this comment wont see the day of light
 	#include <abstractions/base>

utils/test/cleanprof_test.out

@@ -1,3 +1,5 @@
+alias /foo -> /bar,
+
 #include <tunables/global>
 
 # A simple test comment which will persist