change makefile removing group and adding -f to ln

makefile

@@ -13,15 +13,15 @@ install: manpages install_files
 
 install_files:
 	@echo do the install stuff
-	sudo install -o root -g root -m 755  notes /usr/local/bin/notes 
-	sudo ln -s /usr/local/bin/notes /usr/local/bin/notebook
+	sudo install -o root -m 755  notes /usr/local/bin/notes 
+	sudo ln -sf /usr/local/bin/notes /usr/local/bin/notebook
 
 manpages:
 	@echo create the docs files to be installed
 	gzip -c docs/notes.1  > tmp/notes.1.gz
 	gzip -c docs/notebook.1  > tmp/notebook.1.gz
-	sudo install -o root -g root -m 644 tmp/notes.1.gz /usr/share/man/man1
-	sudo install -o root -g root -m 644 tmp/notebook.1.gz /usr/share/man/man1
+	sudo install -o root  -m 644 tmp/notes.1.gz /usr/share/man/man1
+	sudo install -o root  -m 644 tmp/notebook.1.gz /usr/share/man/man1
 
 clean: 
 	@echo clean up after build