Touch session files for every proc_name and save_path

• sess_* file touching is now performed individually for each proc_name with associated save_path.
• Previously, save_path was used in an invalid position.
  Line 49 had a dependency on $save_path, but the variable was defined in line 36, inside the previous loop. If the value was still available outside the loop, the touch was executed at most on the last save path.