Fix two small problems. (Sorry they are merged in one commit since I'm lazy)

[ahyangyi]

1: Fix makefile: no redundant sudo in the command line. That makes no difference for everyone since the sudo is redundant, and fixes the bug for myself since I do not use sudo.

1. Fix mbpfan.c: no more sudden silence if you start this daemon when your system is already very hot. This is due to a 7-second delay between the starting of this daemon and the first change fan speed command. I feel this too dangerous since I was running this with CPU temperature at 92 degree and had to wait for that 7 seconds praying that it won't hit 100 during this....

[ahyangyi]

Oh I just committed another patch that prompts Gentoo users to chmod +x the init script.

[dgraziotin]

Hi, thanks! I think your changes to mbpfan.c make sense. If any, I should also delete lines 497-505. As soon as I can access to my machine again, I will test the changes and merge them. Cheers.

[dgraziotin]

I have merged your pull request (thank you). However, I did a small edit. Instead of completely deleting the first sleep(), I make mbpfan sleep for 2 seconds only. This is for correctly detecting high temperatures. A no sleep would make mbpfan fail in cases for old_temp=61 new_temp=61. A small wait helps mbpfan detect the change. I think it does a better job now, and it is something between the previous solution and your solution. Thank you again, this happened because of your PR.