fix E0117 message out of sync

contrun · contrun · commit 47f6d63e10e7 · 2020-03-14T09:23:59.000+08:00
diff --git a/src/librustc_error_codes/error_codes/E0117.md b/src/librustc_error_codes/error_codes/E0117.md
@@ -1,4 +1,4 @@
-The `Drop` trait was implemented on a non-struct type.
+Only traits defined in the current crate can be implemented for arbitrary types.
 
 Erroneous code example:
 

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		-The `Drop` trait was implemented on a non-struct type.
	`1`	`+Only traits defined in the current crate can be implemented for arbitrary types.`
`2`	`2`
`3`	`3`	`Erroneous code example:`
`4`	`4`