--nonet option should be optional for users

[wjhurley]

Hi! 👋

Firstly, thanks for your work on this project! 🙂

Today I used patch-package to patch [email protected] for the project I'm working on.

Users should be allowed to decide whether or not to use the internet to fetch DTDs and entities (--nonet option). In my diff below I have just removed the option entirely, but it would be nice to allow a boolean or configuration object to add or remove this option (and possibly other options).

Here is the diff that solved my problem:

diff --git a/node_modules/validate-with-xmllint/lib/index.js b/node_modules/validate-with-xmllint/lib/index.js
index ef67514..fc04770 100644
--- a/node_modules/validate-with-xmllint/lib/index.js
+++ b/node_modules/validate-with-xmllint/lib/index.js
@@ -31,19 +31,19 @@ const exec_xmllint = (input, command) => new Promise((resolve, reject) => {
  *
  * @param input XML
  */
-const validateXML = (input) => exec_xmllint(input, "xmllint --noout --nonet -");
+const validateXML = (input) => exec_xmllint(input, "xmllint --noout -");
 exports.validateXML = validateXML;
 /**
  * Validate XML with DTD.
  *
  * @param input XML
  */
-const validateXMLWithDTD = (input) => exec_xmllint(input, "xmllint --valid --noout --nonet -");
+const validateXMLWithDTD = (input) => exec_xmllint(input, "xmllint --valid --noout -");
 exports.validateXMLWithDTD = validateXMLWithDTD;
 /**
  * Validate XML with the provided XML schema file.
  * @param input XML
  * @param xsdfile Path to XSD
  */
-const validateXMLWithXSD = (input, xsdfile) => exec_xmllint(input, `xmllint --schema ${xsdfile} --noout --nonet -`);
+const validateXMLWithXSD = (input, xsdfile) => exec_xmllint(input, `xmllint --schema ${xsdfile} --noout -`);
 exports.validateXMLWithXSD = validateXMLWithXSD;

This issue body was partially generated by patch-package.