Multi: Now outputs to stdout instead of stderr for non-errors

celery/bin/multi.py

@@ -167,8 +167,10 @@ class MultiTool(object):
     retcode = 0  # Final exit code.
 
     def __init__(self, env=None, fh=None, quiet=False, verbose=False,
-                 no_color=False, nosplash=False):
-        self.fh = fh or sys.stderr
+                 no_color=False, nosplash=False, stdout=None, stderr=None):
+        """fh is an old alias to stdout."""
+        self.stdout = self.fh = stdout or fh or sys.stdout
+        self.stderr = stderr or sys.stderr
         self.env = env
         self.nosplash = nosplash
         self.quiet = quiet
@@ -213,8 +215,11 @@ class MultiTool(object):
 
         return self.retcode
 
-    def say(self, m, newline=True):
-        print(m, file=self.fh, end='\n' if newline else '')
+    def say(self, m, newline=True, file=None):
+        print(m, file=file or self.stdout, end='\n' if newline else '')
+
+    def carp(self, m, newline=True, file=None):
+        return self.say(m, newline, file or self.stderr)
 
     def names(self, argv, cmd):
         p = NamespacedOptionParser(argv)
@@ -424,7 +429,7 @@ class MultiTool(object):
 
     def error(self, msg=None):
         if msg:
-            self.say(msg)
+            self.carp(msg)
         self.usage()
         self.retcode = 1
         return 1