gstlal_inspiral_create_prior_diststats: tune the prior dep. on bandwidth a hair

gstlal-inspiral/bin/gstlal_inspiral_create_prior_diststats

@@ -119,8 +119,8 @@ def parse_command_line():
 				bandwidths += [templates.bandwidth(row.mass1, row.mass2, row.spin1z, row.spin2z, f_min = 10.0, f_max = row.f_final, delta_f = 0.25, psd = psd[ifo])]
 		horizon_factors.update(bank.horizon_factors)
 	if options.df == "bandwidth":
-		# NOTE the 1500 is tuned by looking at real data distributions
-		options.df = int(2000. / min(bandwidths))
+		# NOTE the 4000 is tuned by looking at real data distributions
+		options.df = int(4000. / min(bandwidths))
 
 	print options.df
 	return options, process_params, filenames, template_ids, horizon_factors