Importing a signed LDIF file

Steps

To import the signed LDIF file (data.ldif) from Signing an export, run the import-ldif tool with the --isSigned option.

The tool imports the data.ldif file and checks the signature of the contents while overwriting the existing contents to the userRoot backend.

The command requires the --isSigned option, which instructs the tool that the contents of the LDIF file are signed.

Example:
```
$ bin/import-ldif --backendID userRoot \
  --ldifFile /path/to/data.ldif \
  --overwriteExistingEntries --isSigned
```