<p><span class="h-card" translate="no"><a href="https://mastodon.social/@whitequark" class="u-url mention">@<span>whitequark</span></a></span> <span class="h-card" translate="no"><a href="https://mastodon.social/@wingo" class="u-url mention">@<span>wingo</span></a></span> it would be kind of defensible if the scanf string / printf string were standardized (across languages) and also part of the documentation. But even then forwards compatibility is a PITA.</p>