message: Jenkins: move export to same sh line
diff: @@ -25,11 +25,10 @@ pipeline {
  sh 'git submodule deinit -f .'
  sh 'git clean -ff -x -d .'
  sh 'git submodule update --init --recursive --force'
  - sh 'export INSTALL_PREFIX=`pwd`/install'
  - sh 'make BUILD_TYPE=Debug BUILD_BACKEND=1 INSTALL_PREFIX=$INSTALL_PREFIX default install'
  + sh 'export INSTALL_PREFIX=`pwd`/install && make BUILD_TYPE=Debug BUILD_BACKEND=1 INSTALL_PREFIX=$INSTALL_PREFIX default install'
  sh 'build/default/unit_tests_runner'
  sh 'build/default/backend/test/unit_tests_backend'
  - sh 'mkdir -p example/takeoff_land/build && (cd example/takeoff_land/build && cmake -DCMAKE_CXX_FLAGS="-I $INSTALL_PREFIX/include" CMAKE_EXE_LINKER_FLAGS="-L $INSTALL_PREFIX/lib" .. && make)'
  + sh 'export INSTALL_PREFIX=`pwd`/install && mkdir -p example/takeoff_land/build && (cd example/takeoff_land/build && cmake -DCMAKE_CXX_FLAGS="-I $INSTALL_PREFIX/include" -DCMAKE_EXE_LINKER_FLAGS="-L $INSTALL_PREFIX/lib" .. && make)'
  }
  }
  