🌿 Fix test failure on Vim

lambdalisue · lambdalisue · commit d5c37f26981b · 2022-06-17T12:05:06.000+09:00
It seems the latest Vim change the error message to
"E227: Mapping already exists"
diff --git a/denops_std/mapping/mod_test.ts b/denops_std/mapping/mod_test.ts
@@ -263,7 +263,7 @@ test({
         });
       },
       undefined,
-      "E227: mapping already exists",
+      "E227:",
     );
   },
   prelude: ["let g:denops#enable_workaround_vim_before_8_2_3081 = 1"],
