feat: gix index entries also prints attributes.

Author: Byron

gitoxide-core/src/repository/index/entries.rs

@@ -1,3 +1,5 @@
+use std::io::BufWriter;
+
 pub fn entries(repo: gix::Repository, mut out: impl std::io::Write, format: crate::OutputFormat) -> anyhow::Result<()> {
     use crate::OutputFormat::*;
     let index = repo.index()?;
@@ -7,6 +9,7 @@ pub fn entries(repo: gix::Repository, mut out: impl std::io::Write, format: crat
         out.write_all(b"[\n")?;
     }
 
+    let mut out = BufWriter::new(out);
     let mut entries = index.entries().iter().peekable();
     while let Some(entry) = entries.next() {
         match format {
@@ -18,6 +21,7 @@ pub fn entries(repo: gix::Repository, mut out: impl std::io::Write, format: crat
 
     #[cfg(feature = "serde")]
     if let Json = format {
+        use std::io::Write;
         out.write_all(b"]\n")?;
     }
     Ok(())