Update content/vault/v1.18.x/content/docs/configuration/index.mdx

Co-authored-by: Sarah Chavis <62406755+schavis@users.noreply.github.com>

Author: sgmiller

content/vault/v1.18.x/content/docs/configuration/index.mdx

@@ -272,7 +272,7 @@ can have a negative effect on performance due to the tracking of each lock attem
   [os.TempDir()](https://pkg.go.dev/os#TempDir) (usually `/tmp` on Unix systems). This can be updated on a running Vault process
   with a SIGHUP signal.
 
-- `allow_audit_log_prefixing` `(bool: false)` - Enable to allow a constant prefix to be added to audit log entries on 
+- `allow_audit_log_prefixing` `(bool: false)` - Enable to allow prefixes on audit log entries for
   [file sinks](/vault/docs/audit/file).
 
 ### High availability parameters