Rollup merge of rust-lang#64195 - mark-i-m:update-rustc-guide-1, r=ehuss

Centril · web-flow · commit ea2851ee4f1f · 2019-09-07T16:17:42.000+02:00
Update rustc-guide r? @ehuss
diff --git a/src/doc/rustc-guide b/src/doc/rustc-guide
@@ -1 +1 @@
-Subproject commit 6e25a3d0d3573eb42b2e2339f1219e969d1b3dee
+Subproject commit 941968db2fd9c85788a4f971c8e425d46b4cb734
