INI: Use more common grep option in MSR test
@@ -192,7 +192,7 @@ kdb file /tests/ini | xargs cat
#> brand = new
# Retrieve metadata
-kdb lsmeta user/tests/ini/brand | grep --invert-match 'internal'
+kdb lsmeta user/tests/ini/brand | grep -v 'internal'
# rationale
# description
