remove deprecation warning of warn log level

> pysipp/report.py:77:
> DeprecationWarning: The 'warn' method is deprecated, use 'warning'
> instead
>     emit(
>
> pysipp/launch.py:134:
> DeprecationWarning: The 'warn' method is deprecated, use 'warning'
> instead
>     log.warn(

Author: linuxmaniac

pysipp/launch.py

@@ -142,7 +142,7 @@ def _signalall(self, signum):
         signalled = OrderedDict()
         for cmd, proc in self.iterprocs():
             proc.send_signal(signum)
-            log.warn(
+            log.warning(
                 "sent signal '{}' to cmd '{}' with pid '{}'".format(
                     signum, cmd, proc.pid
                 )

pysipp/report.py

@@ -44,7 +44,7 @@ def err_summary(agents2procs):
         return msg
 
 
-def emit_logfiles(agents2procs, level="warn", max_lines=100):
+def emit_logfiles(agents2procs, level="warning", max_lines=100):
     """Log all available SIPp log-file contents"""
     emit = getattr(log, level)
     for ua, proc in agents2procs: