Update server command - log-file parameter - folder value (#29061)

Co-authored-by: Ken Keller <[email protected]>

website/content/docs/commands/server.mdx

@@ -69,7 +69,7 @@ flags](/vault/docs/commands) included on all commands.
 
   | `log-file`              | Full log file           | Rotated log file                    |
   |-------------------------|-------------------------|-------------------------------------|
-  | `/var/log`              | `/var/log/vault.log`    | `/var/log/vault-{timestamp}.log`    |
+  | `/var/log/`             | `/var/log/vault.log`    | `/var/log/vault-{timestamp}.log`    |
   | `/var/log/my-diary`     | `/var/log/my-diary.log` | `/var/log/my-diary-{timestamp}.log` |
   | `/var/log/my-diary.txt` | `/var/log/my-diary.txt` | `/var/log/my-diary-{timestamp}.txt` |