Include commit hash

CONTRIBUTING.md

@@ -11,7 +11,7 @@ Reporting Bugs
 --------------
 
 When reporting bugs, please use our issue tracker on GitHub.  Please make sure
-to include the version number of ArangoDB in your bug report, along with the
+to include the version number of ArangoDB and the commit hash of the go-driver in your bug report, along with the
 platform you are using (e.g. `Linux OpenSuSE x86_64`).  Please also include the
 ArangoDB startup mode (daemon, console, supervisor mode), type of connection used
 towards ArangoDB plus any special configuration.
@@ -20,7 +20,6 @@ This will help us reproducing and finding bugs.
 Please also take the time to check there are no similar/identical issues open
 yet.
 
-
 Contributing features, documentation, tests
 -------------------------------------------