add Cargo.lock to gitignore file by default

See the [official recommendation](http://doc.crates.io/guide.html#cargotoml-vs-cargolock) > * If you're building a library, put Cargo.lock in your .gitignore. > * If you're building an executable, check Cargo.lock into git.
2015-11-13 06:05:10 -05:00 · 2015-11-13 06:05:10 -05:00 · cd3de49669
commit cd3de49669
parent 3d6f6f8210
1 changed files with 1 additions and 0 deletions
--- a/Rust.gitignore
+++ b/Rust.gitignore
@ -9,3 +9,4 @@

 # Generated by Cargo
 /target/
+Cargo.lock