in src/main/java/org/apache/sling/serviceusermapping/impl/MappingInventoryPrinter.java [167:181]
private void asText(PrintWriter w, Mapping m, String indent) {
final String SEP = " / ";
w.print(indent);
w.print(m.getServiceName());
w.print(SEP);
final String sub = m.getSubServiceName();
w.print(sub == null ? "" : sub);
w.print(SEP);
String[] principalNames = getMappedPrincipalNames(m);
if (principalNames != null) {
w.println(Arrays.toString(principalNames));
} else {
w.println(getMappedUser(m));
}
}