sudo -l -U someuser fails when given command to check #248
Description
Given this entry:
nobody ALL = (root) NOPASSWD: /usr/bin/ping
As root: sudo -l -U nobody includes the command in the output, but sudo -l -U nobody /usr/bin/ping fails.
This got broken in 9f695f0 (#134).
I think the idea was to check whether the user running this is allowed to run the pseudo command list as the target user, but runas_pw should only be set this way when testing for list, not when searching for the actual command.
