fix travis config

.travis.yml

-sudo: false
-
 language: generic
 
 dist: precise
@@ -131,11 +129,11 @@ matrix:
        env: NODE_VERSION="4" # node abi 46
      # electron Linux
      - os: linux
-      compiler: clang
-      env: NODE_VERSION="8" ELECTRON_VERSION="8.0.0"
-      dist: trusty
-      addons:
-        apt:
+       compiler: clang
+       env: NODE_VERSION="8" ELECTRON_VERSION="8.0.0"
+       dist: trusty
+       addons:
+         apt:
             sources: [ 'ubuntu-toolchain-r-test','llvm-toolchain-precise-3.5', 'gcc-multilib', 'g++-multilib', 'libsqlite3-dev:i386' ]
             packages: [ 'clang-3.5', 'libstdc++-4.9-dev']
      - os: linux
@@ -248,8 +246,8 @@ matrix:
             packages: [ 'clang-3.5']
      # electron MacOs
      - os: osx
-        compiler: clang
-        env: NODE_VERSION="8" ELECTRON_VERSION="8.0.0"
+       compiler: clang
+       env: NODE_VERSION="8" ELECTRON_VERSION="8.0.0"
      - os: osx
        compiler: clang
        env: NODE_VERSION="8" ELECTRON_VERSION="7.1.0"