looks like brew update runs into issues, terminating the whole build

.travis/install.sh

@@ -4,7 +4,7 @@ set -e
 set -x
 
 if [[ "$(uname -s)" == 'Darwin' ]]; then
-    brew update
+    # brew update
     if [[ "${OPENSSL}" != "0.9.8" ]]; then
         brew outdated openssl || brew upgrade openssl
     fi