Fix #827 - reading generic file formats with Open Babel

[ghutchis]

Make sure the string matches exactly - should work now

Signed-off-by: Geoff Hutchison geoff.hutchison@gmail.com

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[github-actions]

Here are the build results
Avogadro2.AppImage
macOS.dmg
Ubuntu-2004.tar.gz
Win64.exe
Artifacts will only be retained for 90 days.

[ghutchis]

The wheel builds are fixed in another PR, so I'm merging this.