emscripten-buildbot.sh: Leave files in the right place, don't nuke build dir.
diff --git a/build-scripts/emscripten-buildbot.sh b/build-scripts/emscripten-buildbot.sh
index e635c1b..7fa2591 100755
--- a/build-scripts/emscripten-buildbot.sh
+++ b/build-scripts/emscripten-buildbot.sh
@@ -67,9 +67,8 @@ emmake $MAKE install || exit $?
perl -w -pi -e "s#$PWD/emscripten-sdl2-installed#/usr/local#g;" ./emscripten-sdl2-installed/lib/libSDL2.la ./emscripten-sdl2-installed/lib/pkgconfig/sdl2.pc ./emscripten-sdl2-installed/bin/sdl2-config
mkdir -p ./usr
mv ./emscripten-sdl2-installed ./usr/local
+tar -cJvvf $TARBALL usr
popd
-tar -cJvvf $TARBALL -C buildbot usr
-rm -rf buildbot
exit 0