Infected Wounds is the most important debuff a tank can apply, Demoralizing Roar is not as good as Demo Shout or Vindication from paladin, I dont think its wise for a tank to rely on other players to apply both debuffs.
Master Shapeshiffter gives you 4% extra damage, as a tank you DO NOT need this talent, and it costs 5 talent points to have it. Reduced shapeshifting cost is not needed as well, in situations when you are changing forms every 20~ seconds, lets say you are soloing a mob and you have to heal yourself with Regrowth and Rejuvenation, mana you gain from Improved Leader of the Pack is more than enough.
Personally Id much rather have reduced CD on Mangle as it applies 2 of your most important debuffs (Infected Wounds and increased damage taken from bleeds (Lacerate) and Maul) and it makes it easier to reduce incoming damage while tanking multiple targets.
For your needs I would suggest;
https://truewow.org/armory/talentcalc.p ... ,0&realm=p
> can be used for tanking in raids, dungeons, solo farming instances.
You can also put some points into Feral Aggression instead in Improved Mangle if you want your Demo Roar to fully reduce AP of most if not all of the mobs inside of dungeons. One of the reasons feral is a good OffTank in raids is the ability to deal decent damage in cat form while having Tank gear and Talents, for that, it is good to have Improved Mangle or even Shredding Attacks in your tank spec.
In addition, feral spec does not have that many options, you will eventually decide what is better for you, as you will most likely be forced to DPS in your tank spec at certain fights, or you will want to have OS ready for DPS and/or PVP. There is not enough talents to cover all of the situations with just 2 specs, but it all depends on your play-style and variety of activities you do with your character.