Rollup merge of #74601 - GuillaumeGomez:cleanup-e0724, r=jyn514

JohnTitor · web-flow · commit a816345536b1 · 2020-07-24T18:56:29.000+09:00
Clean up E0724 explanation r? @Dylan-DPC
diff --git a/src/librustc_error_codes/error_codes/E0724.md b/src/librustc_error_codes/error_codes/E0724.md
@@ -1,4 +1,5 @@
-`#[ffi_returns_twice]` was used on non-foreign function.
+`#[ffi_returns_twice]` was used on something other than a foreign function
+declaration.
 
 Erroneous code example:
 
