WMaker: fix memory leak in the window inspector when saving settings (Coverity #50174)

As pointed by Coverity, there is one case where the application dictionary
which is created temporarily (when saving the changes in the Window
Inspector) could be left allocated. It is now freed in the common path to
avoid problems.

Signed-off-by: Christophe CURIS <christophe.curis@free.fr>

src/winspector.c

@@ -598,7 +598,6 @@ static void saveSettings(WMWidget *button, void *client_data)
 				WMPutInPLDictionary(dict, key2, appDic);
 		}
 		WMReleasePropList(key2);
-		WMReleasePropList(appDic);
 	} else if (wwin->main_window != wwin->client_win) {
 		WApplication *wapp = wApplicationOf(wwin->main_window);
 
@@ -617,13 +616,12 @@ static void saveSettings(WMWidget *button, void *client_data)
 					WMPutInPLDictionary(dict, key2, appDic);
 			}
 			WMReleasePropList(key2);
-			WMReleasePropList(appDic);
 		}
 	} else {
 		WMMergePLDictionaries(winDic, appDic, True);
 		different |= different2;
-		WMReleasePropList(appDic);
 	}
+	WMReleasePropList(appDic);
 
 	WMRemoveFromPLDictionary(dict, key);
 	if (different)