broken the (no-op) support for this sendmail command. Restore it
to doing nothing, silently, and returning good status.
+JH/05 Bug 2593: Fix "vacation" in Exim filter. Previously, when a "once"
+ record path was given (or the default used) without a leading directory
+ path, an error occurred on trying to open it. Use the transport's working
+ directory.
+
Exim version 4.94
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