Merge pull request #155 from thelounge/astorije/home-upgrade

Replace ~ with ${THELOUNGE_HOME} in upgrade guide

_guides/upgrade.md

@@ -23,7 +23,7 @@ In addition to the items listed in this guide, you may want to enable or configu
 - The Lounge v3.0.0 now requires Node.js v6.13.0 or more recent to run. However, we recommend using the latest Node.js v8.x, current LTS version at the time of writing this guide. [Node.js v7 and v9 have reached End-of-Life](https://github.com/nodejs/Release) and are therefore not supported.
 - The environment variable `$LOUNGE_HOME` that can be used to point The Lounge to a specific home directory (housing configuration file, packages, user settings, etc.) is now called `$THELOUNGE_HOME`. More details [here](/docs/usage#specifying-a-different-configuration-file).
 - In situations where The Lounge has been installed [from the `npmjs.com` registry](https://www.npmjs.com/package/thelounge) or [from source](https://github.com/thelounge/thelounge), we now recommend using the [`yarn` package manager](https://yarnpkg.com/) in lieu of the `npm`. More details [here](/docs/install-and-upgrade).
-- User log files, located `~/.thelounge/logs/<user>/` by default, have changed. Server directories are now named after their name in The Lounge plus a randomized identifier to avoid duplicates (see [#2366](https://github.com/thelounge/thelounge/pull/2366)). Changes were also made to the logging format itself (see [#2501](https://github.com/thelounge/thelounge/pull/2501)). If you are using tools or scripts relying on log format, you will need to update them accordingly.
+- User log files, located `${THELOUNGE_HOME}/logs/<user>/` by default, have changed. Server directories are now named after their name in The Lounge plus a randomized identifier to avoid duplicates (see [#2366](https://github.com/thelounge/thelounge/pull/2366)). Changes were also made to the logging format itself (see [#2501](https://github.com/thelounge/thelounge/pull/2501)). If you are using tools or scripts relying on log format, you will need to update them accordingly.
 - The Docker image has been renamed into [`thelounge/thelounge`](https://hub.docker.com/r/thelounge/thelounge/) on DockerHub. The base image does not come with `vim` nor `nano`, and the `slim` flavor was removed. The default data path was changed from `/home/lounge/data` to `/var/opt/thelounge`.
 
 ## CLI