debinstall #6756 valid debinstall user [validation pending]

It could be interested to have a valid login restricted shell for debinstall user. Thus, dput script could log on (thru ssh) and put files in the right incoming queue.

prioritynormal
typeenhancement
done in2.3.0
load0.500
load left0.000
closed by#7f1b0d3b6ae4 Closes #6756: valid debinstall user