Upgrade Vault version to 1.3.4.

Original pull request: gh-545.

.travis.yml

@@ -19,7 +19,7 @@ env:
     - VAULT_VER=1.0.3
     - VAULT_VER=1.1.5
     - VAULT_VER=1.2.4
-    - VAULT_VER=1.3.2
+    - VAULT_VER=1.3.4
     - EDITION=enterprise VAULT_VER=0.11.0
 
 before_install:

src/test/bash/install_vault.sh

@@ -8,7 +8,7 @@
 set -o errexit
 
 EDITION="${EDITION:-oss}"
-VAULT_OSS="${VAULT_OSS:-1.3.2}"
+VAULT_OSS="${VAULT_OSS:-1.3.4}"
 VAULT_ENT="${VAULT_ENT:-0.11.0}"
 UNAME=$(uname -s | tr '[:upper:]' '[:lower:]')
 VERBOSE=false