Log points don't support interpolation

[rkeithhill]

System Details

System Details Output

### VSCode version: 1.44.2 ff915844119ce9485abfe8aa9076ec76b5300ddd x64

### VSCode extensions:
abusaidm.html-snippets@0.2.1
bierner.github-markdown-preview@0.0.2
bierner.markdown-checkbox@0.1.3
bierner.markdown-emoji@0.0.9
bierner.markdown-preview-github-styles@0.1.6
bierner.markdown-yaml-preamble@0.0.4
DavidAnson.vscode-markdownlint@0.34.0
dbaeumer.vscode-eslint@2.1.5
donjayamanne.githistory@0.6.3
eamodio.gitlens@10.2.1
EditorConfig.EditorConfig@0.14.5
GitHub.vscode-pull-request-github@0.15.0
ms-dotnettools.csharp@1.21.17
ms-python.python@2020.3.71659
ms-vscode-remote.remote-wsl@0.44.2
ms-vscode.cpptools@0.27.0
ms-vscode.powershell-preview@2020.4.2
ms-vscode.vscode-typescript-tslint-plugin@1.2.3
ms-vsliveshare.vsliveshare@1.0.2000
msjsdiag.debugger-for-chrome@4.12.6
octref.lsp-inspector-webview@0.0.2
robinbentley.sass-indented@1.5.1
twxs.cmake@0.0.17
vsls-contrib.codetour@0.0.23
vsls-contrib.gistfs@0.0.66
vsls-contrib.gitdoc@0.0.4
wayou.vscode-todo-highlight@1.0.4
wesbos.theme-cobalt2@2.1.6
yzhang.markdown-all-in-one@2.8.0


### PSES version: 2.1.0.0

### PowerShell version:

Name                           Value
----                           -----
PSVersion                      7.0.0
PSEdition                      Core
GitCommitId                    7.0.0
OS                             Microsoft Windows 10.0.18363
Platform                       Win32NT
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0…}
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1
WSManStackVersion              3.0

Issue Description

Log points strings are not getting interpolated

Expected Behaviour

i is $i should outputs as i is 1

Actual Behaviour

i is $i outputs as i is $i

@TylerLeonhardt has identified the issue.