Assure we load all gitattributes when needed.

This is an on-demand operation anyway, but now we turn on the loading of
git binary-specific gitattributes which should help to emulate gits
behaviour perfectly.

Author: Byron

src/plumbing/main.rs

@@ -84,6 +84,7 @@ pub fn main() -> Result<()> {
             );
             let to_match_settings = |mut opts: gix::open::Options| {
                 opts.permissions.config.git_binary = git_installation;
+                opts.permissions.attributes.git_binary = git_installation;
                 if config.is_empty() {
                     opts
                 } else {

tests/snapshots/plumbing/repository/remote/refs/remote ref-list-no-networking-in-small-failure

@@ -1,7 +1,7 @@
 error: unrecognized subcommand 'remote'
 
-  note: subcommands 'r', 'tree', 'free' exist
-  note: to pass 'remote' as a value, use 'gix -- remote'
+  tip: some similar subcommands exist: 'r', 'tree', 'free'
+  tip: to pass 'remote' as a value, use 'gix -- remote'
 
 Usage: gix [OPTIONS] <COMMAND>