binman: Use print() to print output

At present tout writes directly to stdout. This is not necessary and it
prevents tests from redirecting output. Change it to use print() for the
non-progress output.

Signed-off-by: Simon Glass <sjg@chromium.org>

tools/patman/tout.py

@@ -4,6 +4,8 @@
 # Terminal output logging.
 #
 
+from __future__ import print_function
+
 import sys
 
 import terminal
@@ -87,7 +89,7 @@ def _Output(level, msg, color=None):
         ClearProgress()
         if color:
             msg = _color.Color(color, msg)
-        _stdout.write(msg + '\n')
+        print(msg)
 
 def DoOutput(level, msg):
     """Output a message to the terminal.