travis: Add travis_wait to avoid strong regression test timeout
diff --git a/.travis.yml b/.travis.yml
index afb2baa..f8de94f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -104,7 +104,7 @@
       name: "Strong Regression Tests"
       script:
         - ./.github/travis/build.sh
-        - ./run_reg_test.pl vtr_reg_strong -j2
+        - travis_wait 30 ./run_reg_test.pl vtr_reg_strong -j2
     - stage: Test
       name: "Basic Valgrind Memory Tests"
       script: