fix: Rename 'doc' feature

This is prep for potentially other 'doc' changes

Cargo.toml

@@ -33,11 +33,11 @@ include = [
 ]
 
 [package.metadata.docs.rs]
-features = ["doc"]
+features = ["unstable-doc"]
 cargo-args = ["-Zunstable-options", "-Zrustdoc-scrape-examples=examples"]
 
 [package.metadata.playground]
-features = ["doc"]
+features = ["unstable-doc"]
 
 [package.metadata.release]
 shared-version = true
@@ -57,7 +57,7 @@ default = [
 	"suggestions",
 ]
 debug = ["clap_derive/debug", "backtrace"] # Enables debug messages
-doc = ["derive", "cargo", "wrap_help", "yaml", "env", "unicode", "regex", "unstable-replace", "unstable-multicall", "unstable-grouped"] # for docs.rs
+unstable-doc = ["derive", "cargo", "wrap_help", "yaml", "env", "unicode", "regex", "unstable-replace", "unstable-multicall", "unstable-grouped"] # for docs.rs
 
 # Used in default
 std = ["indexmap/std"] # support for no_std in a backwards-compatible way

Makefile

@@ -14,7 +14,7 @@ _FEATURES = minimal default wasm full debug release
 _FEATURES_minimal = --no-default-features --features "std"
 _FEATURES_default =
 _FEATURES_wasm = --features "derive cargo env unicode yaml regex unstable-replace unstable-multicall unstable-grouped"
-_FEATURES_full = --features "derive cargo env unicode yaml regex unstable-replace unstable-multicall unstable-grouped wrap_help doc"
+_FEATURES_full = --features "derive cargo env unicode yaml regex unstable-replace unstable-multicall unstable-grouped wrap_help unstable-doc"
 _FEATURES_debug = ${_FEATURES_full} --features debug
 _FEATURES_release = ${_FEATURES_full} --release
 

src/lib.rs

@@ -4,7 +4,7 @@
 // notice may not be copied, modified, or distributed except according to those terms.
 
 #![doc(html_logo_url = "https://raw.githubusercontent.com/clap-rs/clap/master/assets/clap.png")]
-#![cfg_attr(feature = "doc", doc = include_str!("../README.md"))]
+#![cfg_attr(feature = "unstable-doc", doc = include_str!("../README.md"))]
 //! <https://github.com/clap-rs/clap>
 #![warn(
     missing_docs,

tests/examples.rs

@@ -6,8 +6,8 @@ fn example_tests() {
     let features = [
         #[cfg(feature = "debug")]
         "debug",
-        #[cfg(feature = "doc")]
-        "doc",
+        #[cfg(feature = "unstable-doc")]
+        "unstable-doc",
         #[cfg(feature = "std")]
         "std",
         #[cfg(feature = "derive")]