[GSoC][PATCH] git-ci: use pylint to analyze the git-p4 code

[Viet Hung Tran <viethtran1620@xxxxxxxxx>]

Hello Mr. Diamand,

I see. Initially, I also thought of using .pylintrc but I don’t know 
which error should be ignored and which should be fixed so  I decided 
to adhere 100% to the convention and fix each type of errors in 
different patches.

Thank you for your help,

Viet

Signed-off-by: Viet Hung Tran <viethtran1620@xxxxxxxxx>