Daniel J Walsh 9917fc0f95 Don't crash when giving bogus format commands ...

Currently if you give a bogus flag to --format it will crash
the formatter.  With this change we will get a nice error.

podman images --format '{{ bogus }}'
Error: template: list:1: function "bogus" not defined

versus
 /bin/podman.old images --format '{{ bogus }}'
panic: template: list:1: function "bogus" not defined

goroutine 1 [running]:

Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>

2020-07-29 14:12:19 -04:00

..

podman

Don't crash when giving bogus format commands

2020-07-29 14:12:19 -04:00