" Change diff highlight groups
hi default diffBold term=bold cterm=bold gui=bold
hi link diffType diffBold
hi link diffFile diffBold
hi link diffSubname None
hi link diffNewFile diffBold
hi link diffAdded DiffAdd
hi link diffRemoved DiffDelete
syn match diffBold "^index\s\w\+\.\.\w\+\s\w\+$"