shell.args configuration does not seem to take effect

[priscira]

Description

I noticed that the shell.args configuration in rio does not seem to take effect.

I attempted to pass the -quiet argument to the murex shell to suppress initialization output. While this configuration works correctly in Alacritty, it fails in rio.

Alacritty Screenshot

Rio Screenshot

Configuration Files

Alacritty Config (Working)

shell = { program = "/usr/local/bin/murex", args = ["-quiet"]}

Rio

[shell]
program = "/usr/local/bin/murex"
args = ["-quiet"]