Can't run from outside of directory

[ghost]

Environment

version: 1.19.0 2bb2126

Version:

Operating system:
Fedora Linux 33

Please describe the expected behavior.

I expected running matterbridge /opt/matterbridge.toml as cd /opt && mattterbridge.toml.

Please describe the actual behavior.

$ matterbridge /opt/matterbridge.toml 
[0000]  INFO main:         Running version 1.19.0 2bb21262
[0000] FATAL config:       Failed to read configuration file: &os.PathError{Op:"open", Path:"matterbridge.toml", Err:0x2}```

### Any steps to reproduce the behavior?


### Please add your configuration file 
<!-- (be sure to exclude or anonymize private data (tokens/passwords)) -->
```toml
[discord.nti]
Token="TOKEN"
Server="469574896754884630"
RemoteNickFormat="[{PROTOCOL}] <{NICK}> "

[discord.calculator_club]
Token="TOKEN"
Server="403053188263051276"
RemoteNickFormat="[{PROTOCOL}] <{NICK}> "

[[gateway]]
name="gateway1"
enable=true

[[gateway.inout]]
account="discord.nti"
channel="calculator_club"

[[gateway.inout]]
account="discord.calculator_club"
channel="general"```

[ghost]

Running as root doesn't do anything, and everything works if I work matterbridge on the config file in the directory.

[42wim]

run matterbridge -conf /opt/matterbridge.toml

[ghost]

Thank you!