patch 9.0.0160: some diff mode tests fail

Problem:    Some diff mode tests fail.
Solution:   Only advance "ptr" when a text property follows.

src/drawline.c

@@ -3473,7 +3473,7 @@ win_line(
 		    ) || lcs_eol_one == -1)
 		break;
 #ifdef FEAT_PROP_POPUP
-	    if (!wp->w_p_wrap)
+	    if (!wp->w_p_wrap && text_prop_follows)
 	    {
 		// do not output more of the line, only the "below" prop
 		ptr += STRLEN(ptr);

src/version.c

@@ -735,6 +735,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    160,
 /**/
     159,
 /**/