dick r. chiang 93e1248c20 Fix problem with occasional stalls in `url-retrieve-synchronously' ...

* lisp/url/url.el (url-retrieve-synchronously): Use
`accept-process-output' on a null process.  That is the safer, more
conventional way of achieving non-blocking sleep-for (bug#49897).

Also rewrite for greater readability.

2021-08-06 13:28:13 +02:00

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