10832 system.4 refers to coffexec

*** 53,76 ****
  
         exec
                   Modules in this namespace are execution format modules. The
                   following exec modules are currently provided:
  
!                  Only on SPARC system:
  
                                                 aoutexec
  
  
  
  
-                  Only on x86 system:
- 
-                                                coffexec
- 
- 
- 
- 
                   On SPARC and IA systems:
  
                                                 elfexec
                                                 intpexec
                                                 javaexec
--- 53,69 ----
  
         exec
                   Modules in this namespace are execution format modules. The
                   following exec modules are currently provided:
  
!                  Only on SPARC systems:
  
                                                 aoutexec
  
  
  
  
                   On SPARC and IA systems:
  
                                                 elfexec
                                                 intpexec
                                                 javaexec
*** 257,262 ****
  NOTES
         The system files are read only once, at boot time.
  
  
  
!                                January 29, 2019                      SYSTEM(4)
--- 250,255 ----
  NOTES
         The system files are read only once, at boot time.
  
  
  
!                                 April 20, 2019                       SYSTEM(4)