Each run of a snap app leak directories in /tmp

[Jean-Baptiste Lallement]

snapd:
  Installed: 2.0.8+16.10

Test Case:
1. In a terminal execute the following commands:
  $ sudo snap install hello
  $ for x in $(seq 10); do hello; done
  $ ls -ld ls -ld /tmp/snap.$(id -u)_snap.hello.hello_*
2. Verify the output of the last command

Expected result
It returns nothing

Actual result
It returns at least 10 directories with the following content
⟫ sudo find /tmp/snap.1000_snap.hello.hello_1eQqie/
/tmp/snap.1000_snap.hello.hello_1eQqie/
/tmp/snap.1000_snap.hello.hello_1eQqie/tmp

[Zygmunt Krynicki (zyga)]

This has been fixed long ago, when I changed snap-confine to clean up after itself properly.