hledger help TOPIC works less well with older info / on mac

[simonmichael]

The help command looks up its argument as an Info node, by default. Normally for me the TOPIC argument is quite forgiving, ie

• you can give it a prefix
• case doesn't matter
• if it can't find any match, it shows the top node.

But today instead of having homebrew-installed info 6.8 in PATH, I had macos big sur's default info 4.8 (from 2004). With this, you get ugly errors like:

$ hledger-1.24 help queries    # actual node title is QUERIES
info: Cannot find node `queries'.
hledger-1.24: callCommand: info -f /private/var/folders/r7/f9j9c2zd1k97v47cr84j_qvc0000gp/T/hledger-hledger35585-0.info -n 'queries' (exit 1): failed

This is a bad experience, perhaps we should warn about the info version or something.

[simonmichael]

If you are on mac, the workaround right now is to install current info with homebrew. You may also need to explicitly add it to your PATH.:

$ brew install texinfo
$ echo 'export PATH=/opt/homebrew/opt/texinfo/bin:$PATH' >> ~/.profile  # or possibly brew link texinfo --force
$ source ~/.profile
$ type -a info
info is /opt/homebrew/opt/texinfo/bin/info
info is /usr/bin/info
$ info --version
info (GNU texinfo) 6.8

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