fix!: Generalize unicode feature

This flag was added in v3.  This will allow us to put more related
functionality behind it.

BREAKING CHANGE: `unicode_help` was renamed to `unicode`.

CHANGELOG.md

@@ -8,7 +8,8 @@ TODO: `YamlLoader`
 
 #### BREAKING CHANGES
 
-
+* **Renamed Features**
+  * `unicode_help` to `unicode` to encompass more functionality
 
 <a name="v3.0.0-beta.4"></a>
 ## v3.0.0-beta.4 (2021-08-14)

Cargo.toml

@@ -88,7 +88,7 @@ default = [
 	"color",
 	"env",
 	"suggestions",
-	"unicode_help",
+	"unicode",
 ]
 debug = ["clap_derive/debug", "backtrace"] # Enables debug messages
 
@@ -99,7 +99,7 @@ cargo = ["lazy_static"] # Disable if you're not using Cargo, enables Cargo-env-v
 color = ["atty", "termcolor"]
 env = [] # Use environment variables during arg parsing
 suggestions = ["strsim"]
-unicode_help = ["textwrap/unicode-width"]  # Enable if any unicode in help message
+unicode = ["textwrap/unicode-width"]  # support for unicode characters in arguments and help messages
 
 # Optional
 wrap_help = ["terminal_size", "textwrap/terminal_size"]

README.md

@@ -475,7 +475,7 @@ Disabling optional features can decrease the binary size of `clap` and decrease
 * **color**: Turns on colored error messages. You still have to turn on colored help by setting `AppSettings::ColoredHelp`. (builds dependency `termcolor`)
 * **env**: Turns on the usage of environment variables during parsing.
 * **suggestions**: Turns on the `Did you mean '--myoption'?` feature for when users make typos. (builds dependency `strsim`)
-* **unicode_help**: Turns on support for unicode characters in help messages. (builds dependency `textwrap`)
+* **unicode**: Turns on support for unicode characters in arguments and help messages. (builds dependency `textwrap`)
 
 To disable these, add this to your `Cargo.toml`: