shellcheck: Error SC2119 doesn't apply to our use cases

Ignoring error SC2119 because they are false positives and I don't see cases
where that would return anything useful for us.

Signed-off-by: Otavio Pontes <otavio.pontes@intel.com>

scripts/shellcheck.bash

@@ -7,6 +7,10 @@
 #  - SC1008: This shebang was unrecognized.
 #    We need to skip this check when processing bats tests because the shebang
 #    is not a shell.
+# - SC2119: Use foo "$@" if function's $1 should mean script's $1.
+#   We need to skip this check because in many ocassions we use functions
+#   that are not expecting arguments, but still shellcheck will detect this
+#   as error because the show_help which is called from all functions uses $@
 
 if [ "$#" -ne 1 ]; then
 	cat <<-EOM
@@ -23,7 +27,7 @@ file="$1"
 if [[ "${file/*./}" == "bats" ]]; then
 	sed 's/^@.*/func() {/' "$file" |
 	sed 's/^load.*/source test\/functional\/testlib.bash/' |
-	shellcheck -s bash -x -e SC1008 /dev/stdin
+	shellcheck -s bash -x -e SC1008,SC2119 /dev/stdin
 else
-	shellcheck -x "$file"
+	shellcheck -x "$file" -e SC2119
 fi