lake puts relative paths in `LD_LIBRARY_PATH`

[eric-wieser]

Prerequisites

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Description

lake env foo runs foo in a context with various environment variables set. However, if foo changes the working directory internally, then these environment variables no longer work, as they are relative paths.

augmentedEnvVars should prepend the working directory to the relative paths it has obtain

Steps to Reproduce

1. lake env env | grep LD_LIBRARY_PATH

Expected behavior: paths should be absolute

Actual behavior: paths are relative

Versions

4.7.0

Impact

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