makefile: fix non-escaped dollar sign (#37)

* $$

* just use quotes cause that's the right thing to do

Author: pixelcmtd

Makefile

@@ -9,11 +9,11 @@ all: dollarskip
 
 install: dollarskip
 	$(STRIP) dollarskip
-	install -d $(DESTDIR)$(PREFIX)/bin
-	install -m 755 dollarskip $(DESTDIR)$(PREFIX)/bin/\$
+	install -d '$(DESTDIR)$(PREFIX)/bin'
+	install -m 755 dollarskip '$(DESTDIR)$(PREFIX)/bin/$$'
 
 uninstall:
-	rm -f $(DESTDIR)$(PREFIX)/bin/\$
+	rm -f '$(DESTDIR)$(PREFIX)/bin/$$'
 
 clean:
 	rm -f dollarskip