Made re.search string shorter

library/system/setup

@@ -1901,7 +1901,7 @@ class LinuxVirtual(Virtual):
 
         if os.path.exists('/proc/1/cgroup'):
             for line in open('/proc/1/cgroup').readlines():
-                if re.search('/lxc/.*$', line):
+                if re.search('/lxc/', line):
                     self.facts['virtualization_type'] = 'lxc'
                     self.facts['virtualization_role'] = 'guest'
                     return