hlink/tests: Fix a typo in a comment.

Signed-off-by: Andrey Gusev <andrey.goosev@gmail.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>

dlls/hlink/tests/hlink.c

@@ -183,7 +183,7 @@ static void test_reference(void)
     ok(r == S_OK, "failed\n");
     ok(str == NULL, "string should be null\n");
 
-    /* Unimplented functions checks */
+    /* Unimplemented functions checks */
     r = IHlink_GetAdditionalParams(lnk, NULL);
     ok(r == E_NOTIMPL, "failed\n");