Bug#1073025: libice: please consider upgrading to 3.0 source format

[Bastian Germann]

Source: libice
Version: 2:1.0.9-2
Severity: wishlist

This package is among the few that still use source format 1.0.
Please upgrade it to source format 3.0, as (1) this format has many
advantages, as documented in https://wiki.debian.org/Projects/DebSrc3.0 ;
(2) this contributes to standardization of packaging practices.