message: Cleanup build script
diff: @@ -202,10 +202,10 @@ function build_webgl_with_target {
  ISSUE_CMAKE_ALWAYS=true
  fi
  if [ ! -d "CMakeFiles" ] || [ "$ISSUE_CMAKE_ALWAYS" == "true" ]; then
  - source $EMSDK/emsdk_env.sh
  + source ${EMSDK}/emsdk_env.sh
  cmake \
  -G "$BUILD_GENERATOR" \
  - -DCMAKE_TOOLCHAIN_FILE=$EMSCRIPTEN/cmake/Modules/Platform/Emscripten.cmake \
  + -DCMAKE_TOOLCHAIN_FILE=${EMSCRIPTEN}/cmake/Modules/Platform/Emscripten.cmake \
  -DCMAKE_BUILD_TYPE=$1 \
  -DCMAKE_INSTALL_PREFIX=../webgl-${LC_TARGET}/filament \
  -DWEBGL=1 \
  @@ -312,7 +312,7 @@ function build_android {
  if [ "$ISSUE_DEBUG_BUILD" == "true" ]; then
  ./gradlew -Pfilament_dist_dir=../../out/android-debug/filament assembleDebug \
  - -Pextra_cmake_args=$VULKAN_ANDROID_OPTION
  + -Pextra_cmake_args=${VULKAN_ANDROID_OPTION}
  if [ "$INSTALL_COMMAND" ]; then
  echo "Installing out/filament-android-debug.aar..."
  @@ -322,7 +322,7 @@ function build_android {
  if [ "$ISSUE_RELEASE_BUILD" == "true" ]; then
  ./gradlew -Pfilament_dist_dir=../../out/android-release/filament assembleRelease \
  - -Pextra_cmake_args=$VULKAN_ANDROID_OPTION
  + -Pextra_cmake_args=${VULKAN_ANDROID_OPTION}
  if [ "$INSTALL_COMMAND" ]; then
  echo "Installing out/filament-android-release.aar..."
  @@ -379,7 +379,7 @@ function run_test {
  # first whitespace-separated token in the string.
  set -- $test
  test_name=`basename $1`
  - ./out/cmake-debug/$test --gtest_output="xml:out/test-results/$test_name/sponge_log.xml"
  + ./out/cmake-debug/${test} --gtest_output="xml:out/test-results/$test_name/sponge_log.xml"
  }
  function run_tests {
  