tenzap 09a7d3c05d fix update-copyright when there is only year without author ...

Otherwise the script would fail on this file:

qtlocation/src/3rdparty/mapbox-gl-native/deps/boost/1.65.1/include/boost/preprocessor/cat.hpp

Which matches this (author is not mentioned) :
Copyright (C) 2001

Error reported before the fix:

  File ".../debian/scripts/update-copyright", line 114, in parse_file
    if copyright[4] == '-':
IndexError: string index out of range

2021-10-02 13:55:53 +02:00

..

update-copyright

fix update-copyright when there is only year without author

2021-10-02 13:55:53 +02:00