Updater: Added "lastupdated" command

Prints the time of the latest update check.

doomsday/engine/data/cphelp.txt

@@ -374,6 +374,9 @@ inf = Params: keymap (dkm-file)\nFor example, 'keymap finnish'.
 desc = Kick client out of the game (server only).
 inf = Params: kick (playernum)\nFor example, 'kick 1'.
 
+[lastupdated]
+desc = Show when the latest check for updates was made.
+
 [listcontrols]
 desc = List the names of all player controls.
 
@@ -537,8 +540,13 @@ desc = Unload the current game or one or more data files.
 inf = Params: unload (name) ...\nFor example, 'unload mylevel.wad'.
 
 [update]
-desc = Check for new available releases or adjust autoupdate settings.
-inf = Examples:\n  'update' checks for new releases.\n  'update config' shows the current settings.
+desc = Check for new available releases.
+
+[updateandnotify]
+desc = Check for new available releases and open the update notification dialog.
+
+[updatesettings]
+desc = Show the settings dialog for configuring automatic updates.
 
 [varstats]
 desc = Show detailed statistics for console variables.

doomsday/engine/portable/include/updater.h

@@ -103,6 +103,11 @@ void Updater_CheckNow(boolean notify);
  */
 void Updater_ShowSettings(void);
 
+/**
+ * Print in the console when the latest update check was made.
+ */
+void Updater_PrintLastUpdated(void);
+
 #ifdef __cplusplus
 } // extern "C"
 #endif

doomsday/engine/portable/src/dd_main.c

@@ -140,6 +140,12 @@ D_CMD(CheckForUpdatesAndNotify)
     return true;
 }
 
+D_CMD(LastUpdated)
+{
+    Updater_PrintLastUpdated();
+    return true;
+}
+
 D_CMD(ShowUpdateSettings)
 {
     Updater_ShowSettings();
@@ -151,9 +157,10 @@ D_CMD(ShowUpdateSettings)
  */
 void DD_Register(void)
 {
-    C_CMD("update", "", CheckForUpdates);
+    C_CMD("update",          "", CheckForUpdates);
     C_CMD("updateandnotify", "", CheckForUpdatesAndNotify);
-    C_CMD("updatesettings", "", ShowUpdateSettings);
+    C_CMD("updatesettings",  "", ShowUpdateSettings);
+    C_CMD("lastupdated",     "", LastUpdated);
 
     DD_RegisterLoop();
     DD_RegisterInput();

doomsday/engine/portable/src/updater.cpp

@@ -545,3 +545,10 @@ void Updater_ShowSettings(void)
     }
     de::LegacyCore::instance().timer(delay, showSettingsDialog);
 }
+
+void Updater_PrintLastUpdated(void)
+{
+    UpdaterSettings st;
+    Con_Message("Latest update check was made on %s.\n",
+                st.lastCheckTime().asText(de::Time::FriendlyFormat).toAscii().constData());
+}