Column in DifferenceDescription returned by LicenseCompareHelper.isTextMatchingTemplate is not correct

[sdheh]

LicenseCompareHelper.isTextMatchingTemplate has the following code

compareTemplateOutputHandler = new CompareTemplateOutputHandler(removeLineSeparators(removeCommentChars(compareText)));

The column returned if there is a difference in a line from which comment chars were removed is wrong because it refers to the transformed text.

Example:

String licenseText = "// a b";
String template = "a";
System.out.println(LicenseCompareHelper.isTextMatchingTemplate(template, licenseText).getDifferenceMessage());

returns Additional text found after the end of the expected license text starting at line #1 column #3 "b"

[goneall]

Thanks again @sdheh for the analysis.

Pull requests are welcome - otherwise I'll look into a fix after finishing the SPDX 3.0 upgrade work.