ci: bah, just move everything into matrix:

.travis.yml

@@ -10,15 +10,24 @@ matrix:
  include:
  - os: linux
  env: LINTER_ONLY=true
+ script:
+ - make lint
+ - os: linux
+ install:
+ - ./configure
+ - make -j2 V=
+ script:
+ - make -j2 test-ci
+ - os: osx
+ install:
+ - ./configure
+ - make -j2 V=
+ script:
+ - make -j2 test-ci
 before_install:
  - export HOMEBREW_NO_AUTO_UPDATE=1 # work around https://github.com/travis-ci/travis-ci/issues/7456
  - if [ $TRAVIS_OS_NAME = osx ]; then brew install ccache; fi
  - export PATH="/usr/local/opt/ccache/libexec:$PATH"
  - export CXX="ccache clang++ -Qunused-arguments"
  - export CC="ccache clang -Qunused-arguments"
- - export JOBS=2
-install:
- - ./configure
- - make -j2 V=
-script:
- - tools/run-ci.sh # do linter env variable detection
+ - export JOBS=2n