patch 8.0.0288: errors reported while running tests

Problem:    Errors reported while running tests.
Solution:   Put comma in the right place.

src/testdir/runtest.vim

@@ -158,7 +158,7 @@ let s:flaky = [
       \ 'Test_communicate()',
       \ 'Test_nb_basic()',
       \ 'Test_pipe_through_sort_all()',
-      \ 'Test_pipe_through_sort_some()'
+      \ 'Test_pipe_through_sort_some()',
       \ 'Test_reltime()',
       \ ]
 

src/userfunc.c

@@ -3556,7 +3556,7 @@ get_funccal_args_var()
 {
     if (current_funccal == NULL)
 	return NULL;
-    return &current_funccal->l_avars_var;
+    return &get_funccal()->l_avars_var;
 }
 
 /*

src/version.c

@@ -764,6 +764,10 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    288,
+/**/
+    287,
 /**/
     286,
 /**/