Try to fix Travis not excluding pgsql,mysqli for HHVM
diff --git a/.travis.yml b/.travis.yml
index 5085ba1..c069aac 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -30,7 +30,9 @@
   exclude:
     - php: hhvm
       env: DB=mysqli
+    - php: hhvm
       env: DB=pgsql
+    - php: hhvm
       env: DB=pdo/pgsql
 
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