TheDarklingWolf/Cataclysm-DDA — pull request #876 by atomicdryad (2013-05-06 18:36:24+00:00)
Title: Glass water bottles: vol 2=>3 to match storage, weight +1 (glass is heavy). Canteens: volume 6 => 4

-2 volume is a virtual
unit to account for ease of handling; 3 500ml water bottles (6 vol)
are more of a pain to handle and probably occupy more dead space
packed together, to say nothing about a canteen's strap etc etc.