Merge "msger.py: avoid the trick caused by stream default parameter"

diff --combined mic/msger.py
index 9665af9,631630b..2a938d3
--- 1/mic/msger.py
--- 2/mic/msger.py
+++ b/mic/msger.py
@@@ -60,31 -60,28 +60,34 @@@ CATCHERR_BUFFILE_FD = -
  CATCHERR_BUFFILE_PATH = None
  CATCHERR_SAVED_2 = -1
  
- def _general_print(head, color, msg = None, stream = sys.stdout, level = 'normal'):
+ def _general_print(head, color, msg = None, stream = None, level = 'normal'):
      global LOG_CONTENT
+     if not stream:
+         stream = sys.stdout
+ 
      if LOG_LEVELS[level] > LOG_LEVEL:
          # skip
          return
  
 +    errormsg = ''
      if CATCHERR_BUFFILE_FD > 0:
          size = os.lseek(CATCHERR_BUFFILE_FD , 0, os.SEEK_END)
          os.lseek(CATCHERR_BUFFILE_FD, 0, os.SEEK_SET)
          errormsg = os.read(CATCHERR_BUFFILE_FD, size)
          os.ftruncate(CATCHERR_BUFFILE_FD, 0)
 -        msg += errormsg
  
      if LOG_FILE_FP:
 +        if errormsg:
 +            LOG_CONTENT += errormsg
 +
          save_msg = msg.strip()
          if save_msg:
              timestr = datetime.now().strftime('[%m/%d %H:%M:%S] ')
              LOG_CONTENT += timestr + save_msg + '\n'
  
 +    if errormsg:
 +        _color_print('', NO_COLOR, errormsg, stream, level)
 +
      _color_print(head, color, msg, stream, level)
  
  def _color_print(head, color, msg, stream, level):