Change `update` script from `bash` to `sh`

Signed-off-by: Kipras Melnikovas <kipras@kipras.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/update b/update
index 27ef9b172057..e7b56cc00aec 100755
--- a/update
+++ b/update
@@ -1,4 +1,4 @@
-#!/usr/bin/env bash
+#!/usr/bin/env sh
 
 if [ -n "$(git status --porcelain)" ]; then
 	printf "Working directory NOT clean - exiting\n"