[openwrt/openwrt] mediatek: mt7623: use bash for generating bootable images

[LEDE Commits]

dangole pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/7190fb2da46bca02c233432db2cad57655208b68

commit 7190fb2da46bca02c233432db2cad57655208b68
Author: David Woodhouse <dwmw2 at infradead.org>
AuthorDate: Tue Sep 8 09:26:34 2020 +0100

    mediatek: mt7623: use bash for generating bootable images
    
    It turns out that 'echo -e' isn't portable; it doesn't work in the dash
    builtin echo and Ubuntu users are complaining.
    
    I can't even get octal (specified by POSIX) to work consistently because
    those  variants of 'echo' which *do* support -e don't seem to interpret
    octalwithout it.
    
    I could switch to /bin/echo but using -e with that isn't actually
    portable *either* even though it works today.
    
    For now just stick with bash, and use its builtin. We may end up using
    something else entirely; perhaps perl.
    
    Signed-off-by: David Woodhouse <dwmw2 at infradead.org>
---
 target/linux/mediatek/image/gen_mtk_mmc_img.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/target/linux/mediatek/image/gen_mtk_mmc_img.sh b/target/linux/mediatek/image/gen_mtk_mmc_img.sh
index ea8a9c63a1..2dacb9019d 100755
--- a/target/linux/mediatek/image/gen_mtk_mmc_img.sh
+++ b/target/linux/mediatek/image/gen_mtk_mmc_img.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 #
 # Copyright © 2019 Alexey Loukianov <lx2 at lexa2.ru>
 # Copyright © 2020 David Woodhouse <dwmw2 at infradead.org>