In file: https://github.com/java-diff-utils/java-diff-utils/blob/master/java-diff-utils/src/main/java/com/github/difflib/UnifiedDiffUtils.java

The method UnifiedDiffUtils.generateOriginalAndDiff there is an error and it displays "expected" instead of "original" for the original file name.

`
String originalFileNameTemp = originalFileName;
String revisedFileNameTemp = originalFileName; // BUG: It has to be revisedFileNameTemp = revisedFileName
if (originalFileNameTemp == null) {
originalFileNameTemp = "original";
}
if (revisedFileNameTemp == null) {
revisedFileNameTemp = "revised";
}

`