Set SDL icon_title when using `-name XXX` for proper gnome-panel window list integration

qemu: improve sdl title information

Include the `-name XXX` commandline param in the gnome-panel window list
via icon_title.

https://bugs.edge.launchpad.net/ubuntu/+source/qemu-kvm/+bug/423076Signed-off-by: NDominic Evans <oldmanuk@gmail.com>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

sdl.c

@@ -407,7 +407,8 @@ static void sdl_process_key(SDL_KeyboardEvent *ev)
 
 static void sdl_update_caption(void)
 {
-    char buf[1024];
+    char win_title[1024];
+    char icon_title[1024];
     const char *status = "";
 
     if (!vm_running)
@@ -419,12 +420,15 @@ static void sdl_update_caption(void)
             status = " - Press Ctrl-Alt-Shift to exit grab";
     }
 
-    if (qemu_name)
-        snprintf(buf, sizeof(buf), "QEMU (%s)%s", qemu_name, status);
-    else
-        snprintf(buf, sizeof(buf), "QEMU%s", status);
+    if (qemu_name) {
+        snprintf(win_title, sizeof(win_title), "QEMU (%s)%s", qemu_name, status);
+        snprintf(icon_title, sizeof(icon_title), "QEMU (%s)", qemu_name);
+    } else {
+        snprintf(win_title, sizeof(win_title), "QEMU%s", status);
+        snprintf(icon_title, sizeof(icon_title), "QEMU");
+    }
 
-    SDL_WM_SetCaption(buf, "QEMU");
+    SDL_WM_SetCaption(win_title, icon_title);
 }
 
 static void sdl_hide_cursor(void)