chore: fix distclean and ignore more files

Author: rsmarples

.gitignore

@@ -5,3 +5,8 @@ config.log
 *.o
 parpd
 parpd.8
+
+*.tar.xz
+*.asc
+*.distinfo
+*.distinfo.md

Makefile

@@ -37,7 +37,7 @@ clean:
 
 distclean: clean
 	rm -f config.h config.mk config.log \
-		${DISTFILE} ${DISTFILEGZ} ${DISTINFO} ${DISTINFOSIGN}
+		${DISTFILE} ${DISTFILE} ${DISTINFO} ${DISTINFOMD} ${DISTSIGN}
 	rm -f *.diff *.patch *.orig *.rej
 	for x in ${SUBDIRS}; do cd $$x; ${MAKE} $@ || exit $$?; cd ..; done