Removed final extra indentation from Makefile status messages.

I thought the indentation looked nice and helped when viewing the output
of a "make xpi" from liberator.

Oh, well.

common/Makefile.common

@@ -95,7 +95,7 @@ $(XPI): $(JAR)
 	mkdir -p $(XPI_PATH)
 	$(AWK) -v 'name=$(NAME)' -f $(BASE)/process_manifest.awk $(TOP)/chrome.manifest >$(XPI_PATH)/chrome.manifest
 	$(MAKE_JAR) "$(XPI)" "$(XPI_BASES)" "$(XPI_DIRS)" "$(XPI_TEXTS)" "$(XPI_BINS)" "$(XPI_FILES)"
-	@echo "  SUCCESS: $@"
+	@echo "SUCCESS: $@"
 
 #### jar