liquibase-core/src/main/java/liquibase/diff/output/report/DiffToReport.java
protected void printComparison(String title, StringDiff string, PrintStream out) {
        out.print(title + ":");

        if (string == null) {
            out.print("NULL");
            return;
        }

        if (string.areEqual()) {
            out.println(" EQUAL");
        } else {
            String referenceVersion = string.getReferenceVersion();
            if (referenceVersion == null) {
                referenceVersion = "NULL";
            } else {
                referenceVersion = "'" + referenceVersion + "'";
            }

            String targetVersion = string.getTargetVersion();
            if (targetVersion == null) {
                targetVersion = "NULL";
            } else {
                targetVersion = "'" + targetVersion + "'";
            }


            out.println();
            out.println("     Reference:   "
                    + referenceVersion);
            out.println("     Target: " + targetVersion);
        }

    }
protected void printComparison(String title, StringDiff string, PrintStream out) {
        out.print(title + ":");

        if (string == null) {
            out.print("NULL");
            return;
        }

        if (string.areEqual()) {
            out.println(" EQUAL");
        } else {
            String referenceVersion = string.getReferenceVersion();
            if (referenceVersion == null) {
                referenceVersion = "NULL";
            } else {
                referenceVersion = "'" + referenceVersion + "'";
            }

            String targetVersion = string.getTargetVersion();
            if (targetVersion == null) {
                targetVersion = "NULL";
            } else {
                targetVersion = "'" + targetVersion + "'";
            }


            out.println();
            out.println("     Reference:   "
                    + referenceVersion);
            out.println("     Target: " + targetVersion);
        }

    }
}