Make SessionBuilder::control_socket available only on unix.

Signed-off-by: Jiahao XU <Jiahao_XU@outlook.com>

Author: NobodyXu

src/builder.rs

@@ -127,6 +127,8 @@ impl SessionBuilder {
     /// be created.
     ///
     /// If not set, `./` will be used (the current directory).
+    #[cfg(not(windows))]
+    #[cfg_attr(docsrs, doc(cfg(not(windows))))]
     pub fn control_directory(&mut self, p: impl AsRef<Path>) -> &mut Self {
         self.control_dir = Some(p.as_ref().to_path_buf());
         self

src/changelog.rs

@@ -6,6 +6,7 @@ use crate::*;
 /// ## Changed
 ///  - Make [`Session::check`] available only on unix.
 ///  - Make [`Socket::UnixSocket`] available only on unix.
+///  - Make [`SessionBuilder::control_socket`] available only on unix.
 pub mod unreleased {}
 
 /// ## Fixed