message: Fix a typo in build.sh
diff: @@ -74,7 +74,7 @@ if [ "${OS}" == "android" ]; then
  cmake -D CMAKE_TOOLCHAIN_FILE=../tools/cmake/android.toolchain.cmake \
  -D CMAKE_INSTALL_PREFIX=install \
  -D CMAKE_BUILD_TYPE="${BUILD_TYPE}" \
  - -D ANDROID_API="${ARCH}" \
  + -D ANDROID_ABI="${ARCH}" \
  -D REALM_ENABLE_ENCRYPTION=1 \
  -D REALM_VERSION="${VERSION}" \
  ..
  