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Preserve line numbers by not injecting a newline (#2653)

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The `dbg!` macro, being deployed more widely in #2478, shows the line
number. But if we inject `#![allow(..)]\n` then the printed numbers do
not match those in the textarea. It turns out that `\n` is not required!

cc @egithinji
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Dustin J. Mitchell 2025-02-21 15:32:31 -05:00 committed by GitHub
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theme/book.js
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@ -130,7 +130,7 @@ function playground_text(playground, hidden = true) {
// Unless the code block has `warnunused`, allow all "unused" lints to avoid cluttering // Unless the code block has `warnunused`, allow all "unused" lints to avoid cluttering
// the output. // the output.
if(!classes.contains("warnunused")) { if(!classes.contains("warnunused")) {
text = '#![allow(unused)]\n' + text; text = '#![allow(unused)] ' + text;
} }
let edition = "2015"; let edition = "2015";
if(classes.contains("edition2018")) { if(classes.contains("edition2018")) {