do_cmake.sh: use bash

Fixes: http://tracker.ceph.com/issues/39981
Signed-off-by: Nathan Cutler <ncutler@suse.com>

diff --git a/do_cmake.sh b/do_cmake.sh
index 26f7b7e51a4a299c83aa308d43efef17b1d2fb1c..73672edf7cd0194ecc8fd36c6005248f302420b1 100755 (executable)
--- a/do_cmake.sh
+++ b/do_cmake.sh
@@ -1,4 +1,5 @@
-#!/bin/sh -x
+#!/usr/bin/env bash
+set -x
 git submodule update --init --recursive
 if test -e build; then
     echo 'build dir already exists; rm -rf build and re-run'