mavlink_log_handler: set current_log_filep to NULL after closing the file
mavlink_log_handler: set current_log_filep to NULL after closing the file

It probably did not cause further issues, except that fclose() was called
on an invalid file handle later on.

dagar/Firmware,PX4/Firmware,dagar/Firmware,dagar/Firmware,jlecoeur/Firmware,Aerotenna/Firmware,mcgill-robotics/Firmware,acfloria/Firmware,mje-nz/PX4-Firmware,PX4/Firmware,mcgill-robotics/Firmware,krbeverx/Firmware,acfloria/Firmware,Aerotenna/Firmware,Aerotenna/Firmware,dagar/Firmware,jlecoeur/Firmware,mcgill-robotics/Firmware,acfloria/Firmware,acfloria/Firmware,mje-nz/PX4-Firmware,mje-nz/PX4-Firmware,mje-nz/PX4-Firmware,krbeverx/Firmware,Aerotenna/Firmware,PX4/Firmware,acfloria/Firmware,jlecoeur/Firmware,PX4/Firmware,krbeverx/Firmware,PX4/Firmware,krbeverx/Firmware,mje-nz/PX4-Firmware,mcgill-robotics/Firmware,jlecoeur/Firmware,PX4/Firmware,Aerotenna/Firmware,dagar/Firmware,krbeverx/Firmware,jlecoeur/Firmware,PX4/Firmware,mcgill-robotics/Firmware,krbeverx/Firmware,dagar/Firmware,mje-nz/PX4-Firmware,acfloria/Firmware,dagar/Firmware,mje-nz/PX4-Firmware,Aerotenna/Firmware,mcgill-robotics/Firmware,mcgill-robotics/Firmware,jlecoeur/Firmware,acfloria/Firmware,jlecoeur/Firmware,krbeverx/Firmware,Aerotenna/Firmware,jlecoeur/Firmware