lib: correct typo in createSecureContext

Minor correction in the comment regarding ssl_set_pkey.

PR-URL: #13653
Reviewed-By: Vse Mozhet Byt <vsemozhetbyt@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Evan Lucas <evanlucas@me.com>
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

lib/_tls_common.js

@@ -91,7 +91,7 @@ exports.createSecureContext = function createSecureContext(options, context) {
  }
 
  // NOTE: It is important to set the key after the cert.
- // `ssl_set_pkey` returns `0` when the key does not much the cert, but
+ // `ssl_set_pkey` returns `0` when the key does not match the cert, but
  // `ssl_set_cert` returns `1` and nullifies the key in the SSL structure
  // which leads to the crash later on.
  if (options.key) {