pass /ar Instead of /var in ProcessGenericOutput address

[hamidmdh]

Describe the bug The attached email address is incorrect

To Reproduce Steps to reproduce the behavior:

1. Set mailscanner Virus Scanners to "generic"
2. Restart mailscanner
3. Send email with malicious attachment
4. see journalctl log
5. grep log with "GenericScanner"
6. In "GenericScanner" line see invalid attachment address .

Expected behavior Instead of "/ar", "/var" should be seen in the log

Server (please complete the following information):

• OS: [CentOS 7]
• MailScanner Version: [5.4.5-3 ]
• OS Version: [ 7.6.1810 ]
• Installation method: [ Package ]
• Installation: [ New]

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