patch 9.0.0760: display test for 'listchars' "precedes" fails

Problem:    Display test for 'listchars' "precedes" fails.
Solution:   Correct the expected result.

src/testdir/test_display.vim

@@ -143,7 +143,7 @@ func Test_display_listchars_precedes()
 
   let lines = ScreenLines([1,10], winwidth(0)+1)
   let expect = [
-        \ "<<<a aaa a|",
+        \ "<aaa aaa a|",
         \ "a aaa aaa |",
         \ "aa aaa aaa|",
         \ " aa aaa aa|",

src/version.c

@@ -695,6 +695,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    760,
 /**/
     759,
 /**/