use argparse version action to print allocbench version

1 files changed, 2 insertions, 5 deletions

diff --git a/merge.py b/merge.py
index 3c88139..89bc7a4 100755
--- a/merge.py
+++ b/merge.py
@@ -41,15 +41,12 @@ def main():
     if "--license" in sys.argv:
         print_license_and_exit()
 
-    if "--version" in sys.argv:
-        print(src.facter.allocbench_version())
-        sys.exit(0)
-
     parser = argparse.ArgumentParser(description="Merge to allocbench results")
     parser.add_argument("src", help="results which should be merged into dest", type=str)
     parser.add_argument("dest", help="results in which src should be merged", type=str)
     parser.add_argument("--license", help="print license info and exit", action='store_true')
-    parser.add_argument("--version", help="print version info and exit", action='store_true')
+    parser.add_argument("--version", help="print version info and exit", action='version',
+                        version=f"allocbench {src.facter.allocbench_version()}")
     parser.add_argument("-b", "--benchmarks", help="benchmarks to summarize", nargs='+')
     parser.add_argument("-x", "--exclude-benchmarks", help="benchmarks to exclude", nargs='+')