patch 8.1.2117: CursorLine highlight used while 'cursorline' is off

Problem:    CursorLine highlight used while 'cursorline' is off.
Solution:   Check 'cursorline' is set. (cloes #5017)
diff --git a/src/drawline.c b/src/drawline.c
index 43604c8..ea7764e 100644
--- a/src/drawline.c
+++ b/src/drawline.c
@@ -1113,11 +1113,11 @@
 		      // the line number itself.
 		      // TODO: Can we use CursorLine instead of CursorLineNr
 		      // when CursorLineNr isn't set?
-		      if ((wp->w_p_cul || wp->w_p_rnu)
+		      if (wp->w_p_cul
+			      && lnum == wp->w_cursor.lnum
 			      && (wp->w_p_culopt_flags & CULOPT_NBR)
 			      && (row == startrow
-				  || wp->w_p_culopt_flags & CULOPT_LINE)
-			      && lnum == wp->w_cursor.lnum)
+				  || wp->w_p_culopt_flags & CULOPT_LINE))
 			char_attr = hl_combine_attr(wcr_attr, HL_ATTR(HLF_CLN));
 #endif
 		    }
diff --git a/src/testdir/test_cursorline.vim b/src/testdir/test_cursorline.vim
index 49df94f..d4a03af 100644
--- a/src/testdir/test_cursorline.vim
+++ b/src/testdir/test_cursorline.vim
@@ -52,7 +52,7 @@
     setl nocursorline relativenumber
     redraw
     let attr31 = s:screen_attr(1)
-    call assert_equal(attr21[0:3], attr31[0:3])
+    call assert_equal(attr22[0:3], attr31[0:3])
     call assert_equal(attr11[4:7], attr31[4:7])
 
     call s:close_windows()
diff --git a/src/version.c b/src/version.c
index 11bfd68..fa4930b 100644
--- a/src/version.c
+++ b/src/version.c
@@ -754,6 +754,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2117,
+/**/
     2116,
 /**/
     2115,