url: encode null character at the end of file path

lib/internal/url.js

@@ -26,6 +26,7 @@ const {
   StringPrototypeIndexOf,
   StringPrototypeSlice,
   StringPrototypeStartsWith,
+  StringPrototypeEndsWith,
   StringPrototypeToWellFormed,
   Symbol,
   SymbolIterator,
@@ -1511,13 +1512,16 @@ function fileURLToPath(path, options = kEmptyObject) {
 // - CR: The carriage return character is also stripped out by the `pathname`
 //       setter.
 // - TAB: The tab character is also stripped out by the `pathname` setter.
+// - NULL: The null character is stripped out by the `URL` constructor.
+
 const percentRegEx = /%/g;
 const backslashRegEx = /\\/g;
 const newlineRegEx = /\n/g;
 const carriageReturnRegEx = /\r/g;
 const tabRegEx = /\t/g;
 const questionRegex = /\?/g;
 const hashRegex = /#/g;
+const nullRegex = /\0$/;
 
 function encodePathChars(filepath, options = kEmptyObject) {
   const windows = options?.windows;
@@ -1532,6 +1536,8 @@ function encodePathChars(filepath, options = kEmptyObject) {
     filepath = RegExpPrototypeSymbolReplace(carriageReturnRegEx, filepath, '%0D');
   if (StringPrototypeIndexOf(filepath, '\t') !== -1)
     filepath = RegExpPrototypeSymbolReplace(tabRegEx, filepath, '%09');
+  if (StringPrototypeEndsWith(filepath, '\0'))
+    filepath = RegExpPrototypeSymbolReplace(nullRegex, filepath, '%00');
   return filepath;
 }