protected void buildSingleAuditLineForField(final AuditableFields field, final Object value, final StringBuilder builder) {
        if (isFieldAuditable(field)) {
            if (useSingleLine) {
                builder.append(value);
                builder.append(getEntrySeparator());
            } else {
                builder.append("%s: ".formatted(field.name()));
                builder.append(value);
                builder.append('\n');
            }
        }
    }
Separator for single line log entries.
core/cas-server-core-audit-api/src/main/java/org/apereo/inspektr/audit/support/AbstractStringAuditTrailManager.java