Allow "(g)make tags" to work again

Change-Id: Idcff82aceedbf42652741564e06ca53984078361
Reviewed-on: https://code.wireshark.org/review/5413
Petri-Dish: Alexis La Goutte <alexis.lagoutte@gmail.com>
Reviewed-by: Stephen Fisher <sfisher@sdf.org>