Travis: try to fix env settings

diff --git a/.travis.yml b/.travis.yml
index 8610c2b..4ba4e2a 100644 (file)
--- a/.travis.yml
+++ b/.travis.yml
@@ -14,8 +14,9 @@ matrix:
     - os: osx
       osx_image: xcode10.1
       compiler: clang
-      env: PATH="/usr/local/opt/mysql-client/bin:$PATH"
-      env: CXX=clang++
+      env:
+        - CXX=clang++
+        - PATH="/usr/local/opt/mysql-client/bin:$PATH"
     - os: linux
       dist: xenial
       compiler: clang