10080 smatch Makefile changes for usr/src/cmd

@@ -20,17 +20,21 @@
 # CDDL HEADER END
 #
 #
 # Copyright (c) 1990 by Sun Microsystems, Inc.
 #
+# Copyright (c) 2018, Joyent, Inc.
 
 PROG= grpck
 
 include ../Makefile.cmd
 
 CERRWARN += -_gcc=-Wno-unused-variable
 
+# not linted
+SMATCH=off
+
 RELUSRSBIN=     ../usr/sbin
 ROOTSYMLINK=    $(ROOTETC)/$(PROG)
 
 .KEEP_STATE: