Fix an embarrassing bug in the stub build-runfiles script used during bootstrapping.

It apparently happened not to make a difference, but still.

--
MOS_MIGRATED_REVID=129314926
diff --git a/scripts/bootstrap/compile.sh b/scripts/bootstrap/compile.sh
index f94aa41..4a7a3c5 100755
--- a/scripts/bootstrap/compile.sh
+++ b/scripts/bootstrap/compile.sh
@@ -220,7 +220,7 @@
 then
      shift
 fi
-mkdir -p $2/MANIFEST
+mkdir -p $2
 cp $1 $2/MANIFEST
 EOF
 chmod 0755 ${ARCHIVE_DIR}/_embedded_binaries/build-runfiles${EXE_EXT}