The actual solution to my git line wrap problems

Apparently, I need formatoptions to include t for vim-fugitive to
correctly wrap at 72 characters. I have no idea why, but I guess this is
an indicator I should figure out what formatoptions actually is doing
for me instead of just copying it from someone else's vimrc.

Solution from http://stackoverflow.com/a/11023282 in one of the
comments.

vimrc

@@ -39,7 +39,7 @@ set endofline                     " Add newline at end of file
 set shellslash                    " Forward slashes
 set nobackup                      " No backup files
 set noswapfile                    " Hope for the best
-set formatoptions=crq
+set formatoptions=crqt
 set textwidth=80
 set cpoptions+=$                  " delimit end of change text
 set laststatus=2                  " Always show status line
@@ -145,9 +145,6 @@ map <Leader>sw :SudoWrite<cr>
 map <Leader>sz :so ~/.vimrc<cr>
 
 " PLUGIN CONFIGURATION
-" vim-fugitive should do this, but it isn't working
-au FileType gitcommit set tw=72
-
 " style
 colorscheme jellybeans
 syntax enable