Bug 32057: (QA follow-up) Remove pretty flag

Not needed for storage. You can always display pretty in the
interface (on a follow-up report).

Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>

C4/Log.pm

@@ -110,7 +110,7 @@ sub logaction {
             }
         );
     }
-    my $trace = @trace ? to_json( \@trace, { utf8 => 1, pretty => 1 } ) : undef;
+    my $trace = @trace ? to_json( \@trace, { utf8 => 1, pretty => 0 } ) : undef;
 
     Koha::ActionLog->new(
         {