Render negatable options as --[no-]name instead of separate entries

[stalep]

Summary

Negatable options are rendered as two separate entries in the help output. The conventional format (used by picocli and other CLI frameworks) is a single combined entry with --[no-] prefix.

Current output

  --cds, --no-cds                          If specified Class Data Sharing (CDS) will be used...
  --integrations, --no-integrations        Enable or disable integration execution (default: true)

Expected output

  --[no-]cds                               If specified Class Data Sharing (CDS) will be used...
  --[no-]integrations                      Enable or disable integration execution (default: true)

The --[no-] format:

• Makes it immediately clear this is a single option with a negation form, not two separate options
• Is more compact
• Follows the convention established by picocli, GNU tools, and npm
• Should also apply in the synopsis: [--[no-]cds] instead of [--cds] with --no-cds as a hidden implicit

Context

Found in jbang (jbangdev/jbang#2453). Picocli rendered negatable options as --[no-]cds.

[stalep]

Fixed in commit 4049204. Negatable options now render as a single combined entry:

Options section:

  --[no-]cds              If specified Class Data Sharing (CDS) will be used
  --[without-]debug       Enable debug mode

Synopsis:

Usage: build [--[no-]cds] [--[without-]debug]

Previously these showed --cds, --no-cds as two separate entries. The --[prefix]name format is more compact and follows the convention used by GNU tools and npm. Custom negation prefixes (e.g., without-) are supported.