(info "(diff) White Space") The `-b' and `--ignore-space-change' options ignore white space at line
The `-w' and `--ignore-all-space' options are stronger than `-b'. Stop talking about them like they might be different options! Say instead The `--ignore-space-change' (-b) options ignore white space at line etc. Else you have people combing the manual to confirm if --ignore-space-change is -b or not. etc. Many such pairs scattered around the manual.
