Update lfric_macros/validate_rose_meta.py

Co-authored-by: Cameron Bateman <cameron.bateman@metoffice.gov.uk>

Author: james-bruten-mo

lfric_macros/validate_rose_meta.py

@@ -219,15 +219,8 @@ def main():
             "line argument"
         )
 
-    failures = False
-
-    if check_rose_metadata(rose_meta_path, source_path):
-        failures = True
-
-    if check_rose_stem_apps(meta_paths, source_path):
-        failures = True
-
-    if failures:
+    if check_rose_metadata(rose_meta_path, source_path) or
+       check_rose_stem_apps(meta_paths, source_path):
         sys.exit("There were metadata validation failures. See output for details")
     print("All metadata successfully validated")