Rollup merge of #72832 - joshtriplett:cargo-tree-d, r=Mark-Simulacrum

RELEASES.md: Expand `cargo tree` note to mention `cargo tree -d` Useful feature that people might not automatically associate with `cargo tree`.
rust-lang · Jun 1, 2020 · b6a5fea · b6a5fea
2 parents cf46836 + 3273660
commit b6a5fea
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/RELEASES.md b/RELEASES.md
@@ -85,6 +85,8 @@ Cargo
   │   │       │           └── version_check v0.1.5
   ...
   ```
+  You can also display dependencies on multiple versions of the same crate with
+  `cargo tree -d` (short for `cargo tree --duplicates`).
 
 Misc
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