Bug 1220763 - 43.0b1 build1 osx en-US beta build failing to upload, r=glandium

--HG--
extra : source : d64148d6bb6075f8d02ee921e1a5b3310c34cfec
extra : intermediate-source : bc9c6e9960069076f78bd91cb660e05779c01aa2

toolkit/mozapps/installer/packager.mk

@@ -210,7 +210,7 @@ checksum:
 
 upload: checksum
 	$(PYTHON) -u $(MOZILLA_DIR)/build/upload.py --base-path $(DIST) \
-		--package $(PACKAGE) \
+		--package '$(PACKAGE)' \
 		--properties-file $(DIST)/mach_build_properties.json \
 		$(UPLOAD_FILES) \
 		$(CHECKSUM_FILES)