message: Fixed a typo in android toolchain documentation.
diff: # Silently degrades to gnustl_static if not available.
  # c++_static -> Use the LLVM libc++ runtime as a static library.
  # Implies -frtti -fexceptions.
  -# c++_shared -> Use the LLVM libc++ runtime as a static library.
  +# c++_shared -> Use the LLVM libc++ runtime as a shared library.
  # Implies -frtti -fno-exceptions.
  #
  # ANDROID_STL_FORCE_FEATURES=ON - turn rtti and exceptions support based on
  