Rollup merge of rust-lang#73892 - GuillaumeGomez:cleanup-e0712, r=Dylan-DPC

Manishearth · web-flow · commit 1b37bfa537a4 · 2020-07-01T20:36:00.000-07:00
Clean up E0712 explanation r? @Dylan-DPC
diff --git a/src/librustc_error_codes/error_codes/E0712.md b/src/librustc_error_codes/error_codes/E0712.md
@@ -1,5 +1,5 @@
-This error occurs because a borrow of a thread-local variable was made inside a
-function which outlived the lifetime of the function.
+A borrow of a thread-local variable was made inside a function which outlived
+the lifetime of the function.
 
 Erroneous code example:
 
