Unbreak travis on macos

lu-zero · lu-zero · commit 899ee03088d5 · 2019-02-19T10:05:10.000+01:00
diff --git a/.travis.yml b/.travis.yml
@@ -19,7 +19,7 @@ cache:
   directories:
     - libav-samples
 before_install:
-  - if [ "$TRAVIS_OS_NAME" == "osx" ]; then brew update --all; fi
+  - if [ "$TRAVIS_OS_NAME" == "osx" ]; then brew update; fi
 install:
   - if [ "$TRAVIS_OS_NAME" == "osx" ]; then brew install nasm; fi
 script:
