Sets the path to the file affected by the issue and the line in the file where the issues has occurred.
public IssueBuilder InFile(string filePath, Nullable<int> line)
||The path to the file affected by the issue.
The path needs to be relative to the repository root.
System.String.Empty if issue is not related to a change in a file.
||The line in the file where the issues has occurred.
null if the issue affects the whole file or an assembly.