Add documentation for generic function (SETF MACRO-FUNCTION).
Add documentation for generic function (SETF MACRO-FUNCTION).

clasp-developers/SICL,clasp-developers/SICL,vtomole/SICL,clasp-developers/SICL,vtomole/SICL,vtomole/SICL,clasp-developers/SICL,vtomole/SICL