Added --store option.

When using --help, the option parser exits the process. Changed the
main program to not print the SystemExit exception in this case,
just calling sys.exit instead, with the appropriate exit code.

1 files changed, 2 insertions, 0 deletions

diff --git a/obnam b/obnam
index aaf5b23f..c8845fc7 100755
--- a/obnam
+++ b/obnam
@@ -26,6 +26,8 @@ except obnamlib.AppException, e:
     logging.critical(str(e))
     sys.stderr.write('Error: %s\n' % str(e))
     sys.exit(1)
+except SystemExit, e:
+    sys.exit(e.code)
 except BaseException, e:
     logging.critical(traceback.format_exc())
     sys.stderr.write(traceback.format_exc())