3 files changed, 6 insertions, 15 deletions
diff --git a/bench.py b/bench.py
index 35a6b76..a10fe77 100755
--- a/bench.py
+++ b/bench.py
@@ -111,16 +111,13 @@ def main():
                         action='store_true')
     parser.add_argument("--version",
                         help="print version info and exit",
-                        action='store_true')
+                        action='version',
+                        version=f"allocbench {src.facter.allocbench_version()}")
 
     args = parser.parse_args()
     if args.license:
         print_license_and_exit()
 
-    if args.version:
-        print(src.facter.allocbench_version())
-        sys.exit(0)
-
     atexit.register(epilog)
 
     # Set global verbosity
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='+')
 
diff --git a/summarize.py b/summarize.py
index 6bb0485..9d3f1b0 100755
--- a/summarize.py
+++ b/summarize.py
@@ -136,10 +136,6 @@ if __name__ == "__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="Summarize allocbench results in allocator sets")
     parser.add_argument("results", help="path to results", type=str)
@@ -152,7 +148,8 @@ if __name__ == "__main__":
                         action='store_true')
     parser.add_argument("--version",
                         help="print version info and exit",
-                        action='store_true')
+                        action='version',
+                        version=f"allocbench {src.facter.allocbench_version()}")
     parser.add_argument("-b",
                         "--benchmarks",
                         help="benchmarks to summarize",