Clean up E0517 explanation

diff --git a/src/librustc_error_codes/error_codes/E0517.md b/src/librustc_error_codes/error_codes/E0517.md
index f738d33560a02bd47d1f79348118e5ef54468ba8..ae802245bd1d70dcbdefac72562148a93b394169 100644 (file)
--- a/src/librustc_error_codes/error_codes/E0517.md
+++ b/src/librustc_error_codes/error_codes/E0517.md
@@ -1,5 +1,4 @@
-This error indicates that a `#[repr(..)]` attribute was placed on an
-unsupported item.
+A `#[repr(..)]` attribute was placed on an unsupported item.
 
 Examples of erroneous code: