For D55257 reproduce with:
```
# touch /tmp/nada
# ngctl -f /tmp/nada ; echo $?
71
```
That should exit 0.
For D50241:
```
# man ngctl | head -8
NGCTL(8) FreeBSD System Manager's Manual NGCTL(8)
NAME
ngctl – netgraph control utility
SYNOPSIS
ngctl [-j jail] [-d] [-f filename] [-n nodename] [command [argument ...]]
[command ...]
```
That last `[command ...]` on its own line should not be there. It should match usage from `ngctl`.