bash_completion: added -o filename option to _hg_status (issue3101)

contrib/bash_completion

@@ -84,6 +84,7 b' shopt -s extglob'
 {
     local files="$(_hg_cmd status -n$1 .)"
     local IFS=$'\n'
+    compopt -o filenames 2>/dev/null
     COMPREPLY=(${COMPREPLY[@]:-} $(compgen -W '$files' -- "$cur"))
 }