[log] correct the log info in HandleLeaderKeepAliveResponse() (#2547)
[log] correct the log info in HandleLeaderKeepAliveResponse() (#2547)


pvanhorn/openthread,chshu/openthread,gandreello/openthread,lanyuwen/openthread,LeZhang2016/openthread,erja-gp/openthread,chshu/openthread,turon/openthread,georgecpr/openthread,pvanhorn/openthread,chshu/openthread,turon/openthread,pvanhorn/openthread,librasungirl/openthread,chshu/openthread,pvanhorn/openthread,LeZhang2016/openthread,openthread/openthread,librasungirl/openthread,librasungirl/openthread,georgecpr/openthread,bukepo/openthread,gandreello/openthread,georgecpr/openthread,openthread/openthread,gandreello/openthread,bukepo/openthread,lanyuwen/openthread,turon/openthread,srickardti/openthread,turon/openthread,lanyuwen/openthread,georgecpr/openthread,mszczodrak/openthread,georgecpr/openthread,bukepo/openthread,LeZhang2016/openthread,lanyuwen/openthread,erja-gp/openthread,erja-gp/openthread,gandreello/openthread,mszczodrak/openthread,abtink/openthread,openthread/openthread,erja-gp/openthread,bukepo/openthread,jwhui/openthread,librasungirl/openthread,chshu/openthread,mszczodrak/openthread,jwhui/openthread,pvanhorn/openthread,srickardti/openthread,georgecpr/openthread,erja-gp/openthread,chshu/openthread,pvanhorn/openthread,mszczodrak/openthread,LeZhang2016/openthread,jwhui/openthread,lanyuwen/openthread,gandreello/openthread,mszczodrak/openthread,erja-gp/openthread,srickardti/openthread,jwhui/openthread,abtink/openthread,gandreello/openthread,srickardti/openthread,abtink/openthread,openthread/openthread,LeZhang2016/openthread,LeZhang2016/openthread,abtink/openthread,mszczodrak/openthread,lanyuwen/openthread