tests/utils/utils.sh: bt_grep_ok(): use `local -r` when possible

Signed-off-by: Philippe Proulx <eeppeliteloop@gmail.com>
Change-Id: Ifbe0ccbd2c42d929331eb87e5f7743083d9c1a1a

diff --git a/tests/utils/utils.sh b/tests/utils/utils.sh
index 9291db8833e6a8340e0452276d2714788ccd2ed5..393cf1633b3da3061a78e2f0b6b01f499c291ea2 100644 (file)
--- a/tests/utils/utils.sh
+++ b/tests/utils/utils.sh
@@ -359,13 +359,13 @@ bt_grep() {
 # ok() with the test name `$3` on the result of bt_grep() matching the
 # pattern `$1` within the file `$2`.
 bt_grep_ok() {
-       local pattern=$1
-       local file=$2
-       local test_name=$3
+       local -r pattern=$1
+       local -r file=$2
+       local -r test_name=$3
 
        bt_grep --silent "$pattern" "$file"
 
-       local ret=$?
+       local -r ret=$?
 
        if ! ok $ret "$test_name"; then
                {