patch 8.0.0808: cannot build with terminal feature and DEBUG defined

Problem:    Cannot build with terminal feature and DEBUG defined. (Christian
            Brabandt)
Solution:   Use DEBUG_LOG3().

src/libvterm/src/pen.c

@@ -106,7 +106,7 @@ static void setpenattr(VTermState *state, VTermAttr attr, VTermValueType type UN
 {
 #ifdef DEBUG
   if(type != vterm_get_attr_type(attr)) {
-    DEBUG_LOG("Cannot set attr %d as it has type %d, not type %d\n",
+    DEBUG_LOG3("Cannot set attr %d as it has type %d, not type %d\n",
         attr, vterm_get_attr_type(attr), type);
     return;
   }

src/version.c

@@ -769,6 +769,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    808,
 /**/
     807,
 /**/