Auto merge of #39072 - radix:patch-1, r=GuillaumeGomez

Minor improvement to strange grammar in E0525

Hi, I just ran into this error from rustc, and it had some strange grammar, so I cleaned it up a bit.

Author: bors

src/librustc/diagnostics.rs

@@ -1618,8 +1618,7 @@ fn cookie() -> ! { // error: definition of an unknown language item: `cookie`
 "##,
 
 E0525: r##"
-A closure was attempted to get used whereas it doesn't implement the expected
-trait.
+A closure was used but didn't implement the expected trait.
 
 Erroneous code example: