MT#62763 Fix shellcheck issues

Warned-by: shellcheck
Change-Id: I9905ce2d441ee0a2ced22c3247bf52a79d4cdd14

ngcp-system-tests

@@ -3,7 +3,8 @@
 set -e
 set -E
 
-declare -r ME="$(basename "$0")"
+ME="$(basename "$0")"
+declare -r ME
 declare -r OPTS=("$@")
 declare -a PROVE_OPTS=()
 NGCP_TESTS_MODE=${NGCP_TESTS_MODE:=prove}

sbin/ngcp-mysql-compare-dbs

@@ -55,6 +55,7 @@ if [[ ! -r "${NGCP_ROLES}" ]]; then
   echo "Cannot read mandatory config file ${NGCP_ROLES}" 2>&1
   exit 1
 fi
+# shellcheck disable=SC1090
 . "${NGCP_ROLES}"
 
 MYSQL_CREDENTIALS='/etc/mysql/sipwise_extra.cnf'