Improve the explanation about the behaviour of read_line

sheeponmeth · web-flow · commit 6daa74a442e4 · 2022-03-15T19:08:03.000+08:00
diff --git a/library/std/src/io/mod.rs b/library/std/src/io/mod.rs
@@ -2110,7 +2110,7 @@ pub trait BufRead: Read {
     }
 
     /// Read all bytes until a newline (the `0xA` byte) is reached, and append
-    /// them to the provided buffer.
+    /// them to the provided buffer (without clear buffer before appended it).
     ///
     /// This function will read bytes from the underlying stream until the
     /// newline delimiter (the `0xA` byte) or EOF is found. Once found, all bytes

Original file line number	Diff line number	Diff line change
`@@ -2110,7 +2110,7 @@ pub trait BufRead: Read {`
`2110`	`2110`	`}`
`2111`	`2111`
`2112`	`2112`	/// Read all bytes until a newline (the `0xA` byte) is reached, and append
`2113`		`- /// them to the provided buffer.`
	`2113`	`+ /// them to the provided buffer (without clear buffer before appended it).`
`2114`	`2114`	`///`
`2115`	`2115`	`/// This function will read bytes from the underlying stream until the`
`2116`	`2116`	/// newline delimiter (the `0xA` byte) or EOF is found. Once found, all bytes