fix: add error message for file not found

Add an error message when trying to locate a non-existing file
inside an archive when using `extract-file`.

Author: Edythator

lib/filesystem.js

@@ -139,6 +139,11 @@ class Filesystem {
     followLinks = typeof followLinks === 'undefined' ? true : followLinks
     const info = this.getNode(p)
 
+    if (typeof info === 'undefined') {
+      console.error(`The file "${p}" was not found in the archive.`)
+      process.exit(1)
+    }
+
     // if followLinks is false we don't resolve symlinks
     if (info.link && followLinks) {
       return this.getFile(info.link)