Distribute *root-dir* to all threads.

The creation of the reject and data files didn't happen in the
right *root-dir* setting for lack of sending the main value to the worker
threads.

Author: dimitri

src/utils/monitor.lisp

@@ -123,6 +123,7 @@
                       (*client-min-messages* . ,*client-min-messages*)
                       (*monitoring-queue*    . ,*monitoring-queue*)
                       (*error-output*        . ,*error-output*)
+                      (*root-dir*            . ,*root-dir*)
                       (*standard-output*     . ,*standard-output*)
                       (*summary-pathname*    . ,*summary-pathname*)
                       (*sections*            . ',*sections*)))

src/utils/threads.lisp

@@ -12,6 +12,7 @@
                             (*copy-batch-size*    . ,*copy-batch-size*)
                             (*concurrent-batches* . ,*concurrent-batches*)
 			    (*pg-settings*        . ',*pg-settings*)
+                            (*root-dir*           . ,*root-dir*)
                             (*fd-path-root*       . ,*fd-path-root*)
                             (*client-min-messages* . ,*client-min-messages*)
                             (*log-min-messages*    . ,*log-min-messages*)