ion why PackageName panics

[jlapeyre]

ion 0.1.21

> ion why Revise
thread 'main' panicked at 'Invalid version spec: Invalid version range: >=1.9.0-beta',
  /home/username/github/Roger-luo/Ion/src/ion/utils/julia.rs:161:60

[jlapeyre]

This panic does not happen if, for example, if I replace >=1.9.0-beta with >=1.9.0 here

Ion/src/bin/ion/commands/pkg/why.rs

Lines 16 to 17 in a9e7e96

	assert_julia_version(config, ">=1.9.0-beta")?;
	format!("using Pkg; Pkg.why({})", PackageSpecList::new(matches))

[Roger-luo]

ah sry I haven't got time working on this, but the binary does work if you know how to workaround ;-)