Clean up E0727 explanation

diff --git a/src/librustc_error_codes/error_codes/E0727.md b/src/librustc_error_codes/error_codes/E0727.md
index be1b68e645d012ca3223c1627a8b5f3fe01d40ae..386daea0c57e3dfd4c6204c957b1572621221b32 100644 (file)
--- a/src/librustc_error_codes/error_codes/E0727.md
+++ b/src/librustc_error_codes/error_codes/E0727.md
@@ -1,6 +1,6 @@
 A `yield` clause was used in an `async` context.
 
-Example of erroneous code:
+Erroneous code example:
 
 ```compile_fail,E0727,edition2018
 #![feature(generators)]