fix CI

.travis.yml

@@ -26,7 +26,8 @@ install:
       _old_path="$PATH";
       echo "PATH=$PATH"
       export PATH="";
-      /usr/local/openssl version 2>&1 || true;
+      export OPENSSL_BIN="/usr/local/openssl"
+      $OPENSSL_BIN version 2>&1 || true;
       export PATH="$_old_path";
     fi
   
@@ -43,7 +44,7 @@ script:
   - cd ..
   - git clone https://github.com/Neilpang/acmetest.git && cp -r acme.sh acmetest/ && cd acmetest
   - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then sudo NGROK_TOKEN="$NGROK_TOKEN" ./letest.sh ; fi
-  - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then sudo NGROK_TOKEN="$NGROK_TOKEN_OSX" OPENSSL_BIN="/usr/local/Cellar/openssl/1.0.2j/bin/openssl" ./letest.sh ; fi
+  - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then sudo NGROK_TOKEN="$NGROK_TOKEN_OSX" OPENSSL_BIN="$OPENSSL_BIN" ./letest.sh ; fi
 
 
 matrix: