2019-02-05: FG; Try to fix error with broken pipe.

Ceph/Script/cephHealth.pl

@@ -183,7 +183,7 @@ if ($sumDo > 1) {
 
 # Fetch the "pg dump" data and put it in an array
 if ($doOsdFullth + $doOsdNearFullth + $doOsdBackfillFullth) {
-    my @_pgdata = `$cephCmd osd dump | head -20 2> /dev/null`;
+    my @_pgdata = `$cephCmd osd dump | tail -n +1 | head -20 2> /dev/null`;
     chomp @_pgdata;
     foreach my $_pgline (@_pgdata) {
 	if ($doOsdFullth) {