Bugfix: Consistently 3 UTC second decimals in USC.TAB
Bugfix: Consistently 3 UTC second decimals in USC.TAB

an_USCprint.m: Previously 3 decimals for case "vfloat" and 6 decimals for case "vz"
in the UTC column in USC.TAB files.

irfu/Lapdog_GIT,frejon/Lapdog_GIT,frejon/Lapdog_GIT,irfu/Lapdog_GIT