copy-firmware: Fix test: unexpected operator

dash is the default /bin/sh on Debian based system.

```
dash ./copy-firmware.sh --zstd example
./copy-firmware.sh: 37: test: unexpected operator
```

`=` should be used with the test command for POSIX conformance.

Signed-off-by: Benjamin Drung <benjamin.drung@canonical.com>
Signed-off-by: Josh Boyer <jwboyer@kernel.org>
This commit is contained in:
Benjamin Drung 2023-07-18 13:20:24 +02:00 committed by Josh Boyer
parent b602d438fb
commit 0a51959c6f
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@ -24,7 +24,7 @@ while test $# -gt 0; do
;;
--xz)
if test "$compext" == ".zst"; then
if test "$compext" = ".zst"; then
echo "ERROR: cannot mix XZ and ZSTD compression"
exit 1
fi
@ -34,7 +34,7 @@ while test $# -gt 0; do
;;
--zstd)
if test "$compext" == ".xz"; then
if test "$compext" = ".xz"; then
echo "ERROR: cannot mix XZ and ZSTD compression"
exit 1
fi