Output Pane displays partial content if the log contains character 'U+0000'

[hsfzxjy]

Type: Bug

• VS Code Version: 1.81.0
• OS Version: Ubuntu 20.04.6 LTS

Any extension logging through node-spdlog is affected by this bug.

For example, vscode-go runs tests and logging the stdout/stderr output to the Output Pane. If we write a piece of test code that simply outputs a string containing U+0000 to stdout,

then only the string "before" is logged to Output Pane and content "after" after U+0000 is trimmed.

This is acknowledged as a bug of node-spdlog. microsoft/node-spdlog#39 will fix it.

[hsfzxjy]

@sandy081 Could you spare some time to take a look at this one? It's a rather long-term critical bug but should be a quick fix with my PR. 🙏