Fix wrong user message about autoHideSystemTray values

kalarmconfig.kcfg

@@ -103,7 +103,7 @@
     </entry>
     <entry name="AutoHideSystemTray" type="Int">
       <label context="@label">Auto-hide in system tray if no alarms due within period</label>
-      <whatsthis context="@info:whatsthis">&lt;para>Enter 0 to auto-hide &lt;application>KAlarm&lt;/application>'s icon in the system tray when there are no active alarms.&lt;/para>&lt;para>To auto-hide the system tray icon when there are no alarms due within a set period of time, enter the time period in minutes.&lt;/para>&lt;para>Enter 0 to always show the system tray icon.&lt;/para></whatsthis>
+      <whatsthis context="@info:whatsthis">&lt;para>Enter -1 to auto-hide &lt;application>KAlarm&lt;/application>'s icon in the system tray when there are no active alarms.&lt;/para>&lt;para>To auto-hide the system tray icon when there are no alarms due within a set period of time, enter the time period in minutes.&lt;/para>&lt;para>Enter 0 to always show the system tray icon.&lt;/para></whatsthis>
       <default>1440</default>
       <emit signal="autoHideSystemTrayChanged"/>
     </entry>

prefdlg.cpp

@@ -1796,7 +1796,7 @@ void ViewPrefTab::restore(bool, bool allTabs)
         int mins = Preferences::autoHideSystemTray();
         switch (mins)
         {
-            case -1:  id = 1;  break;    // hide if any active alarms
+            case -1:  id = 1;  break;    // hide if no active alarms
             case 0:   id = 0;  break;    // never hide
             default:
             {
@@ -1860,7 +1860,7 @@ void ViewPrefTab::apply(bool syncToDisc)
         switch (mAutoHideSystemTray->selectedId())
         {
             case 0:  n = 0;   break;    // never hide
-            case 1:  n = -1;  break;    // hide if any active alarms
+            case 1:  n = -1;  break;    // hide if no active alarms
             case 2:                     // hide if no alarms due within period
                      n = mAutoHideSystemTrayPeriod->period().asSeconds() / 60;
                      break;