compatibility with MacOS

modules/Bio/EnsEMBL/Hive/Meadow/LOCAL.pm

@@ -32,7 +32,7 @@ sub responsible_for_worker {
 sub status_of_all_my_workers { # returns a hashref
     my ($self) = @_;
 
-    my $cmd = 'ps -o state,pid,cmd -w -w --no-header x | grep runWorker.pl | grep -v "grep runWorker.pl" ';
+    my $cmd = 'ps x -o state,pid,command -w -w | grep runWorker.pl | grep -v "grep runWorker.pl" ';
 
         # FIXME: if we want to incorporate Meadow->pipeline_name() filtering here,
         #        a dummy parameter to the runWorker.pl should probably be introduced