patch 8.2.0616: build error when disabling the diff feature

Problem:    Build error when disabling the diff feature.
Solution:   Move parenthesis outside of #ifdef. (Tom Ryder)

src/drawline.c

@@ -3095,9 +3095,9 @@ win_line(
 #ifdef FEAT_SYN_HL
 	    if (!(cul_screenline
 # ifdef FEAT_DIFF
-			&& diff_hlf == (hlf_T)0)
+			&& diff_hlf == (hlf_T)0
 # endif
-		    )
+		    ))
 		saved_char_attr = char_attr;
 	    else
 #endif

src/version.c

@@ -746,6 +746,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    616,
 /**/
     615,
 /**/