cleanup whitespace

package/dhcp_relay/dhcp_relay.mk

@@ -32,7 +32,7 @@ $(DHCP_RELAY_DIR)/$(DHCP_RELAY_BINARY): $(DHCP_RELAY_DIR)/.configured
 
 $(TARGET_DIR)/$(DHCP_RELAY_TARGET_BINARY): $(DHCP_RELAY_DIR)/$(DHCP_RELAY_BINARY)
 	(cd $(TARGET_DIR)/var/lib; ln -sf /tmp dhcp)
-	cp -a $(DHCP_RELAY_DIR)/$(DHCP_RELAY_BINARY) $(TARGET_DIR)/$(DHCP_RELAY_TARGET_BINARY) 
+	cp -a $(DHCP_RELAY_DIR)/$(DHCP_RELAY_BINARY) $(TARGET_DIR)/$(DHCP_RELAY_TARGET_BINARY)
 	rm -rf $(TARGET_DIR)/share/locale $(TARGET_DIR)/usr/info \
 		$(TARGET_DIR)/usr/man $(TARGET_DIR)/usr/share/doc