vim-patch:8.2.0966: 'shortmess' flag "n" not used in two places

Problem:    'shortmess' flag "n" not used in two places.
Solution:   Make use of the "n" flag consistent. (Nick Jensen, closes vim/vim#6245,
            closes vim/vim#6244)
722e505d1a

test/functional/ex_cmds/drop_spec.lua

@@ -31,7 +31,7 @@ describe(":drop", function()
       {0:~                                  }|
       {0:~                                  }|
       {1:tmp1.vim                           }|
-      "tmp1.vim" [New File]              |
+      "tmp1.vim" [New]                   |
     ]])
   end)
 
@@ -70,7 +70,7 @@ describe(":drop", function()
       {0:~                   }{2:│}{0:~             }|
       {0:~                   }{2:│}{0:~             }|
       {2:tmp2 [+]             tmp1          }|
-      "tmp3" [New File]                  |
+      "tmp3" [New]                       |
     ]])
   end)