sh.zio.backup: add prototyping

usr/local/bin/sh.zio.backup

@@ -88,12 +88,10 @@ function invoke_restic() {
                 --repo "$(cat $restic_repo_file)" \
                 $command $args 2>&1 | tee /dev/fd/3)"
 
-            echo "------"
-            echo "$restic_out"
-
             if [[ $? == 0 ]]; then
                 break
             else
+            	echo "---- THE OUTPUT: $restic_out"
                 if [[ $attempts == 0 ]]; then
                     say warning "Command failed. No attempts left"
                     break
@@ -103,6 +101,8 @@ function invoke_restic() {
                     sleep $attempts_delay
                 fi
             fi
+
+            exec 3>&-
         done
     fi
 }