build: Remove newlines in task description

src/wscript

@@ -336,7 +336,7 @@ class ns3pcfile_task(Task.Task):
     def __str__(self):
         "string to display to the user"
         tgt_str = ' '.join([a.bldpath() for a in self.outputs])
-        return 'pcfile: %s\n' % (tgt_str)
+        return 'pcfile: %s' % (tgt_str)
 
     def runnable_status(self):
         return super(ns3pcfile_task, self).runnable_status()

waf-tools/command.py

@@ -31,7 +31,7 @@ class command_task(Task.Task):
 		pipeline = shellcmd.Pipeline()
 		pipeline.parse(self.generator.command)
 		cmd = pipeline.get_abbreviated_command()
-		return 'command (%s): %s%s%s\n' % (cmd, src_str, sep, tgt_str)
+		return 'command (%s): %s%s%s' % (cmd, src_str, sep, tgt_str)
 
 	def _subst_arg(self, arg, direction, namespace):
 		"""