Update build.rs.

Author: sunfishcode

build.rs

@@ -4,21 +4,22 @@ fn main() {
         .channel
     {
         for feature in &[
-            "can_vector",         // https://github.com/rust-lang/rust/issues/69941
-            "read_initializer",   // https://github.com/rust-lang/rust/issues/42788
-            "seek_convenience",   // https://github.com/rust-lang/rust/issues/59359
-            "with_options",       // https://github.com/rust-lang/rust/issues/65439
-            "write_all_vectored", // https://github.com/rust-lang/rust/issues/70436
-            "windows_by_handle",  // https://github.com/rust-lang/rust/issues/63010
-            "windows_file_type_ext",
-            "open_options_ext_as_flags", // https://github.com/rust-lang/rust/issues/76801
-            "try_reserve",               // https://github.com/rust-lang/rust/issues/56431
-            "shrink_to",                 // https://github.com/rust-lang/rust/issues/56431
-            "pattern",                   // https://github.com/rust-lang/rust/issues/27721
+            "can_vector",                // https://github.com/rust-lang/rust/issues/69941
             "clamp",                     // https://github.com/rust-lang/rust/issues/44095
             "extend_one",                // https://github.com/rust-lang/rust/issues/72631
+            "open_options_ext_as_flags", // https://github.com/rust-lang/rust/issues/76801
+            "pattern",                   // https://github.com/rust-lang/rust/issues/27721
+            "read_initializer",          // https://github.com/rust-lang/rust/issues/42788
+            "seek_convenience",          // https://github.com/rust-lang/rust/issues/59359
+            "shrink_to",                 // https://github.com/rust-lang/rust/issues/56431
             "toowned_clone_into",        // https://github.com/rust-lang/rust/issues/41263
+            "try_reserve",               // https://github.com/rust-lang/rust/issues/56431
             "unix_socket_peek",          // https://github.com/rust-lang/rust/issues/76923
+            "windows_by_handle",         // https://github.com/rust-lang/rust/issues/63010
+            "with_options",              // https://github.com/rust-lang/rust/issues/65439
+            "write_all_vectored",        // https://github.com/rust-lang/rust/issues/70436
+            // https://doc.rust-lang.org/unstable-book/library-features/windows-file-type-ext.html
+            "windows_file_type_ext",
         ] {
             println!("cargo:rustc-cfg={}", feature);
         }