Add libuserdefs and use in cmd/{oamuser,passwd}

@@ -53,17 +53,17 @@
 
 CPPFLAGS=       -I$(HERE) -I$(LOCAL) $(CPPFLAGS.master)
 FILEMODE=       0555
 
 $(GROUPADD) :=  OBJS = $(ADD_OBJ)
-$(GROUPADD) :=  LDLIBS += $(LIBUSRGRP) -lcmdutils
+$(GROUPADD) :=  LDLIBS += $(LIBUSRGRP) -luserdefs -lcmdutils
 
 $(GROUPDEL) :=  OBJS = $(DEL_OBJ)
 $(GROUPDEL) :=  LDLIBS += $(LIBUSRGRP)
 
 $(GROUPMOD) :=  OBJS = $(MOD_OBJ)
-$(GROUPMOD) :=  LDLIBS += $(LIBUSRGRP)
+$(GROUPMOD) :=  LDLIBS += $(LIBUSRGRP) -luserdefs
 
 all:            $(PROG)
 
 $(PROG):        $$(OBJS) $(LIBUSRGRP)
         $(LINK.c) $(OBJS) -o $@ $(LDLIBS)