Fix bindfs invocation when mounting shared folders

When passing sequence of arguments to `subprocess.run`, each argument needs to be separate.
Commit 18d4edd fixed mounting when using FUSE >= 3.x, but instead caused regression for older versions of FUSE.

Fixes #19

Author: LightWayUp

waydroid_helper/tools/mount_service.py

@@ -38,10 +38,6 @@ def BindMount(self, source, target):
                 text=True,
             )
             fuse_version = fuse_version_result.stdout.splitlines()[0].split()[4]
-            if int(fuse_version.split('.')[0]) < 3:
-                nonempty_option = "-o nonempty"
-            else:
-                nonempty_option = ""
 
             command = [
                 "bindfs",
@@ -52,8 +48,11 @@ def BindMount(self, source, target):
                 source_str,
                 target_str,
             ]
-            if nonempty_option:
-                command.insert(1, nonempty_option)
+            if int(fuse_version.split('.')[0]) < 3:
+                command[1:1] = [
+                    "-o",
+                    "nonempty"
+                ]
 
             result = subprocess.run(
                 command,