travis: don't install asciidoctor's documentation.

Change-Id: I8d70cb7e940dc527c13e60195f4fd049cdff2481
Reviewed-on: https://code.wireshark.org/review/27954
Reviewed-by: Alexis La Goutte <alexis.lagoutte@gmail.com>

diff --git a/.travis.yml b/.travis.yml
index dba384db374a16b0ad64d5964f8866e0fabe6978..0a58362de9bbca11c3a10dcfa0f483f083e32375 100644 (file)
--- a/.travis.yml
+++ b/.travis.yml
@@ -31,11 +31,11 @@ before_install:
   - if [ "$TRAVIS_OS_NAME" == "osx" ]; then ./tools/macos-setup-brew.sh; fi
   - if [ "$TRAVIS_OS_NAME" == "osx" ]; then PATH=/usr/local/opt/qt5/bin:$PATH; fi
   # linux
-  - if [ "$TRAVIS_OS_NAME" == "linux" ]; then  if [ "$CXX" = "g++" ]; then export CXX="g++-8" CC="gcc-8"; fi ; fi
+  - if [ "$TRAVIS_OS_NAME" == "linux" ]; then if [ "$CXX" = "g++" ]; then export CXX="g++-8" CC="gcc-8"; fi ; fi
   - if [ "$TRAVIS_OS_NAME" == "linux" ]; then sudo ./tools/debian-setup.sh --install-optional -qq; fi
   - $CC --version
 before_script:
-  - sudo gem install asciidoctor
+  - sudo gem install asciidoctor --no-document
   - mkdir build
   - cd build
   - cmake -GNinja -DENABLE_PCAP=${PCAP} ..