Send start() and done() messages to stderr

MessagePrinter sends all info(), note(), warn(), and error() messages to
stderr. start() and done() messages also belong in this set. I.e. all
diagnostic messages are routed to stderr.

N.B. only stdout(), stdout_raw(), and stdout_bytes() are routed to stdout.

Signed-off-by: Peter Grayson <[email protected]>

Author: jpgrayson

stgit/out.py

@@ -99,7 +99,6 @@ def __init__(self, file=None):
                     sys.stderr.fileno(), 'w', buffering=1, encoding='utf-8'
                 )
             )
-        self.__out = self.__stdout
 
     def stdout(self, line):
         """Write a line to stdout."""
@@ -137,17 +136,17 @@ def error(self, *msgs, **kw):
 
     def start(self, msg):
         """Start a long-running operation."""
-        self.__out.single_line('%s ... ' % msg, print_newline=False)
-        self.__out.level += 1
+        self.__stderr.single_line('%s ... ' % msg, print_newline=False)
+        self.__stderr.level += 1
 
     def done(self, extramsg=None):
         """Finish long-running operation."""
-        self.__out.level -= 1
+        self.__stderr.level -= 1
         if extramsg:
             msg = 'done (%s)' % extramsg
         else:
             msg = 'done'
-        self.__out.single_line(msg, need_newline=False)
+        self.__stderr.single_line(msg, need_newline=False)
 
 
 out = MessagePrinter()