Ensure that kernel hostname is same as /etc/hostname when configuring hostname.

debian/changelog

@@ -1,6 +1,8 @@
 propellor (0.5.3) UNRELEASED; urgency=medium
 
   * Fix unattended-upgrades config for !stable.
+  * Ensure that kernel hostname is same as /etc/hostname when configuring
+    hostname.
 
  -- Joey Hess <joeyh@debian.org>  Sun, 18 May 2014 13:44:00 -0400
 

src/Propellor/Property/Hostname.hs

@@ -13,7 +13,6 @@ sane = property ("sane hostname") (ensureProperty . setTo =<< getHostName)
 
 setTo :: HostName -> Property
 setTo hn = combineProperties desc go
-	`onChange` cmdProperty "hostname" [basehost]
   where
 	desc = "hostname " ++ hn
 	(basehost, domain) = separate (== '.') hn
@@ -24,6 +23,7 @@ setTo hn = combineProperties desc go
 			then Nothing 
 			else Just $ File.fileProperty desc
 				addhostline "/etc/hosts"
+		, cmdProperty "hostname" [basehost]
 		]
 	
 	hostip = "127.0.1.1"