Merge branch 'js/coverity-fixes'

Merge branch 'js/coverity-fixes'

Various resource leaks, invalid file descriptor closures, and process
handle ownership issues flagged by Coverity have been fixed.

* js/coverity-fixes:
  mingw: make `exit_process()` own the process handle on all paths
  fsmonitor: plug token-data leak on early daemon-startup failures
  reftable/table: release filter on error path
  imap-send: avoid leaking the IMAP upload buffer
  worktree: fix resource leaks when branch creation fails
  submodule: fix cwd leak in `get_superproject_working_tree()`
  dir: free allocations on parse-error paths in `read_one_dir()`
  line-log: avoid redundant copy that leaks in process_ranges
  run-command: avoid `close(-1)` in `start_command()` error paths
  download_https_uri_to_file(): do not leak fd upon failure
  loose: avoid closing invalid fd on error path
  load_one_loose_object_map(): fix resource leak