Systemd sends "Executing ..." message to the socket instead of logging it

Issue

• systemd sends "Executing ..." to the socket instead of logging it
• When the systemd.socket initializes the service, systemd is injecting "Executing: some command line" into the stream instead of logging it

• systemd transmits additional data through the socket and causes the receiving application to crash:

  # dbtest % telnet localhost 26120
  Trying ::1...
  Connected to localhost.
  Escape character is '^]'.
  Executing: /test/ultra45/ultra/local/bin/hl7recv -e LINK=sbh_oe,TRIPLEG=/test/ultra45/ultra -c /test/ultra45/ultra/etc/hl7/hl7recv.conf
  

• When we submit a print job to the CUPS server via LPD, the queue goes down and CUPS does not create the job.

  bash-4.2# qchk -Ppr12
  Queue   Dev   Status    Job Files              User         PP %   Blks  Cp Rnk
  ------- ----- --------- --- ------------------ ---------- ---- -- ----- --- ---
  pr12  @ppri READY
  pr12: Executing: /usr/lib/cups/daemon/cups-lpd
  pr12: Executing: /usr/lib/cups/daemon/cups-lpd