version: switch to print_function

Python 3 requires it.

Signed-off-by: Rob Browning <rlb@defaultvalue.org>
Tested-by: Rob Browning <rlb@defaultvalue.org>

diff --git a/cmd/version-cmd.py b/cmd/version-cmd.py
index cfde72c29689ad119fc79d4382f0541f980da6f4..9b23ea2726ce65656e052b944e9fdcede7cc2888 100755 (executable)
--- a/cmd/version-cmd.py
+++ b/cmd/version-cmd.py
@@ -4,7 +4,10 @@ bup_python="$(dirname "$0")/bup-python" || exit $?
 exec "$bup_python" "$0" ${1+"$@"}
 """
 # end of bup preamble
+
+from __future__ import print_function
 import re, sys
+
 from bup import options
 from bup import version
 
@@ -55,8 +58,8 @@ def version_tag():
 
 
 if opt.date:
-    print version_date()
+    print(version_date())
 elif opt.commit:
-    print version_commit()
+    print(version_commit())
 else:
-    print version_tag()
+    print(version_tag())