fix ci

.travis.yml

@@ -26,9 +26,9 @@ install:
       _old_path="$PATH";
       echo "PATH=$PATH";
       export PATH="";
-      export OPENSSL_BIN="/usr/local/openssl";
+      export ACME_OPENSSL_BIN="/usr/local/openssl";
       openssl version 2>&1 || true;
-      $OPENSSL_BIN version 2>&1 || true;
+      $ACME_OPENSSL_BIN version 2>&1 || true;
       export PATH="$_old_path";
     fi
   
@@ -44,7 +44,7 @@ script:
   - cd ..
   - git clone https://github.com/Neilpang/acmetest.git && cp -r acme.sh acmetest/ && cd acmetest
   - if [ "$TRAVIS_OS_NAME" = "linux" -a "$NGROK_TOKEN" ]; then sudo TEST_LOCAL="$TEST_LOCAL" NGROK_TOKEN="$NGROK_TOKEN" ./letest.sh ; fi
-  - if [ "$TRAVIS_OS_NAME" = "osx" -a "$NGROK_TOKEN" ]; then sudo TEST_LOCAL="$TEST_LOCAL" NGROK_TOKEN="$NGROK_TOKEN" OPENSSL_BIN="$OPENSSL_BIN" ./letest.sh ; fi
+  - if [ "$TRAVIS_OS_NAME" = "osx" -a "$NGROK_TOKEN" ]; then sudo TEST_LOCAL="$TEST_LOCAL" NGROK_TOKEN="$NGROK_TOKEN" ACME_OPENSSL_BIN="$ACME_OPENSSL_BIN" ./letest.sh ; fi
 
 
 matrix: