bf705f2 Omit SourceLicense tag when using vendor tarball

2 files Authored by carlwgeorge a month ago, Committed by decathorpe a month ago,
    Omit SourceLicense tag when using vendor tarball
    
    When using vendored dependencies, the licenses in the sources will
    typically match the licenses in the binaries.  In this scenario the
    SourceLicense tag can be omitteed since it should match the License tag.