Ignore white space in vimdiff
From Vim Tips Wiki
created 2006 · complexity basic · author vagusri · version 5.7
I had been searching for a way to ignore white spaces while using vimdiff. Unfortunately,
vimdiff -h yields the generic Vim help. I finally found that including the following line in vimrc solves the problem.
From the command line:
vimdiff -c 'set diffopt+=iwhite' ...