fix(help): quote empty string defaults in help output #6241
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Fixes clap-rs#4976 When a default value is an empty string, the help output now displays `[default: ""]` instead of `[default: ]`, making it clear that the default is an empty string rather than appearing to be missing. Changes: - help_template.rs: Added check for empty strings in default value display - possible_value.rs: Added check for empty strings in get_visible_quoted_name - format.rs: Added check for empty strings in Escape Display impl
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Fixes #4976
Summary
When a default value is an empty string, the help output now displays
[default: ""]instead of[default: ], making it clear that the default is an empty string rather than appearing to be missing.Changes
help_template.rs: Added check for empty strings in default value displaypossible_value.rs: Added check for empty strings inget_visible_quoted_nameformat.rs: Added check for empty strings inEscapeDisplay implBefore
After
This is a minimal change that follows the existing pattern of using Rust debug representation for values that need quoting.