fix: use longhand gitoxide path-spec patterns

src/cargo/sources/path.rs

@@ -610,11 +610,11 @@ fn list_files_gix(
 
     let pathspec = {
         // Include the package root.
-        let mut include = BString::from(":/");
+        let mut include = BString::from(":(top)");
         include.push_str(package_prefix.as_ref());
 
         // Exclude the target directory.
-        let mut exclude = BString::from(":!/");
+        let mut exclude = BString::from(":!(exclude,top)");
         exclude.push_str(target_prefix.as_ref());
 
         vec![include, exclude]

tests/testsuite/build_script.rs

@@ -5833,17 +5833,6 @@ fn directory_with_leading_underscore() {
             .file("_foo/foo/build.rs", "fn main() { }")
     });
     p.cargo("build --manifest-path=_foo/foo/Cargo.toml -v")
-        .with_status(101)
-        .with_stderr_data(r#"[ERROR] failed to determine package fingerprint for build script for foo v0.1.0 ([ROOT]/foo/_foo/foo)
-
-Caused by:
-  failed to determine the most recently modified file in [ROOT]/foo/_foo/foo
-
-Caused by:
-  failed to determine list of files in [ROOT]/foo/_foo/foo
-
-Caused by:
-  Unimplemented short keyword: '_'
-"#)
+        .with_status(0)
         .run();
 }