bump version to 1:0.51-6

6 jobs for master in 12 minutes and 2 seconds (queued for 3 seconds)
latest
Status Job ID Name Coverage
  Build
passed #223942
build

00:03:23

 
  Test
passed #223945
autopkgtest

00:04:29

passed #223946
blhc

00:01:33

passed #223944
lintian

00:02:32

passed #223947
piuparts

00:04:03

passed #223943
reprotest

00:02:51