StringBuilder out = new StringBuilder(256);
- out.append(String.format("%s %d\n", GFF_VERSION, gffVersion == 0 ? 2 : gffVersion));
+ out.append(String.format("%s %d" + newline, GFF_VERSION,
+ gffVersion == 0 ? 2 : gffVersion));
if (!includeNonPositionalFeatures
&& (visibleColours == null || visibleColours.isEmpty()))