Fix art script argument quoting.

$* is always a mistake, which is a shame because that's what everyone
learns first.

Change-Id: I0c18d13a42653cdde72b55ba7a4284e3454a5ba8
diff --git a/tools/art b/tools/art
index c3fe0f5..1e983c0 100755
--- a/tools/art
+++ b/tools/art
@@ -40,4 +40,4 @@
  LD_LIBRARY_PATH=$ANDROID_HOST_OUT/lib\
  exec $invoke_with $ANDROID_HOST_OUT/bin/$oatexec\
  -Ximage:$ANDROID_HOST_OUT/framework/core.art \
- $*
+ "$@"