Clarify that drop flag fields only apply to older Rust versions (#324)

ByteNybbler · JohnTitor · web-flow · commit 49681ea4a9fa · 2021-11-24T16:27:28.000+09:00
Co-authored-by: Yuki Okushi &lt;jtitor@2k36.org&gt;
diff --git a/src/drop-flags.md b/src/drop-flags.md
@@ -79,5 +79,5 @@ if condition {
 }
 ```
 
-The drop flags are tracked on the stack and no longer stashed in types that
-implement drop.
+The drop flags are tracked on the stack.
+In old Rust versions, drop flags were stashed in a hidden field of types that implement `Drop`.

Original file line number	Diff line number	Diff line change
`@@ -79,5 +79,5 @@ if condition {`
`79`	`79`	`}`
`80`	`80`	```
`81`	`81`
`82`		`-The drop flags are tracked on the stack and no longer stashed in types that`
`83`		`-implement drop.`
	`82`	`+The drop flags are tracked on the stack.`
	`83`	+In old Rust versions, drop flags were stashed in a hidden field of types that implement `Drop`.