patch 7.4.1428

Problem:    Compiler warning for non-virtual destructor.
Solution:   Make it virtual. (Yasuhiro Matsumoto)

src/gui_dwrite.cpp

@@ -237,7 +237,8 @@ public:
 	AddRef();
     }
 
-    ~GdiTextRenderer()
+    // add "virtual" to avoid a compiler warning
+    virtual ~GdiTextRenderer()
     {
 	SafeRelease(&pRenderTarget_);
 	SafeRelease(&pRenderingParams_);

src/version.c

@@ -748,6 +748,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1428,
 /**/
     1427,
 /**/