Clean up E0463 explanation

diff --git a/src/librustc_error_codes/error_codes/E0463.md b/src/librustc_error_codes/error_codes/E0463.md
index 41add698cdc9041d6474250f7c25ca46d1259259..e46938c607d34f45a5e68b0328ff61da4625883e 100644 (file)
--- a/src/librustc_error_codes/error_codes/E0463.md
+++ b/src/librustc_error_codes/error_codes/E0463.md
@@ -1,4 +1,6 @@
-A plugin/crate was declared but cannot be found. Erroneous code example:
+A plugin/crate was declared but cannot be found.
+
+Erroneous code example:
 
 ```compile_fail,E0463
 #![feature(plugin)]