Merge branch 'FixAcmdWarning_20180602' into 'master'

fixing Warning for acmd.py filter_files

See merge request atlas/athena!11833

Former-commit-id: 5a28330655a3104690a33d19bf3c2df291c8431f

Tools/PyUtils/python/scripts/filter_files.py

@@ -111,7 +111,7 @@ def main(args):
         # optimization: run directly 'AtlCopyBSEvent.exe
         import subprocess
         cmd = ' '.join([
-            'AtlCopyBSEvent.exe',
+            'AtlCopyBSEvent',
             '-e %(evt-list)s',
             '%(run-list)s',
             '--out %(output)s',