py3: make blackbox-readonly-dispatch.py use ui instead of print()

tests/blackbox-readonly-dispatch.py

@@ -1,36 +1,38 b''
-from __future__ import absolute_import, print_function
+from __future__ import absolute_import
 import os
 from mercurial import (
     dispatch,
+    ui as uimod,
 )
 
 def testdispatch(cmd):
     """Simple wrapper around dispatch.dispatch()
 
     Prints command and result value, but does not handle quoting.
     """
-    print("running: %s" % (cmd,))
-    req = dispatch.request(cmd.split())
+    ui = uimod.ui.load()
+    ui.status("running: %s\n" % cmd)
+    req = dispatch.request(cmd.split(), ui)
     result = dispatch.dispatch(req)
-    print("result: %r" % (result,))
+    ui.status("result: %r\n" % result)
 
 # create file 'foo', add and commit
 f = open('foo', 'wb')
 f.write('foo\n')
 f.close()
 testdispatch("--debug add foo")
 testdispatch("--debug commit -m commit1 -d 2000-01-01 foo")
 
 # append to file 'foo' and commit
 f = open('foo', 'ab')
 f.write('bar\n')
 f.close()
 # remove blackbox.log directory (proxy for readonly log file)
 os.rmdir(".hg/blackbox.log")
 # replace it with the real blackbox.log file
 os.rename(".hg/blackbox.log-", ".hg/blackbox.log")
 testdispatch("--debug commit -m commit2 -d 2000-01-02 foo")
 
 # check 88803a69b24 (fancyopts modified command table)
 testdispatch("--debug log -r 0")
 testdispatch("--debug log -r tip")