saveargs: Implement as libsaveargs

*** 60,69 ****
--- 60,70 ----
  
  include ../../Makefile.amd64
  include ../../../Makefile.kmdb
  
  STANDLIBS += $(ROOT)/usr/lib/amd64/libstanddisasm.so
+ STANDLIBS += $(ROOT)/usr/lib/amd64/libstandsaveargs.so
  
  INCDIRS += $(SRC)/uts/i86pc $(SRC)/common/dis/i386
  
  CPPFLAGS += -DDIS_TEXT