[enh] #390: send_doc: Exit the programm in case of HTTPError exception

got raised
Exiting the programm is not an issue for all the send document cmds
Even for the intermediaries tx case, since this is change operations
operated over the issuer pubkey

silkaj/network_tools.py

@@ -90,4 +90,4 @@ def send_document(bma_path, document):
         client(bma_path, document.signed_raw())
         print(f"{doc_name} successfully sent")
     except urllib.error.HTTPError as e:
-        print(f"Error while publishing {doc_name.lower()}: {e}")
+        sys.exit(f"Error while publishing {doc_name.lower()}: {e}")