ngctl.8: fix incorrect synopsis

[dave_freedave.net]

Summary

Tiny manpage bug I caused in D50241
I left a line in the manpage that shouldn't be there.

Test Plan

# 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.

[dave_freedave.net]

The usage is, I believe, correct:

# ngctl -h
ngctl: illegal option -- h
usage: ngctl [-j jail] [-d] [-f filename] [-n nodename] [command [argument ...]]

That is you can issue exactly one command with many arguments. If you want multiple commands you must use a file.

[des]

usr.sbin/ngctl/main.c

255 ↗

(On Diff #172581)

Damn, I thought getline() returned 0 on EOF. So there are two bugs here: the loop condition should use >= instead of >, and this if should just check ferror(fp).

[des]

usr.sbin/ngctl/main.c

255 ↗

(On Diff #172581)

I will take care of this in D55487.

[dave_freedave.net]

As @des has the correct fix for ngctl, I'm going to just going to update this to have my manpage bug. Thanks!

[dave_freedave.net]

remove bad fix, its addressed in D55487.