+core.whitespace::
+ A comma separated list of common whitespace problems to
+ notice. `git diff` will use `color.diff.whitespace` to
+ highlight them, and `git apply --whitespace=error` will
+ consider them as errors:
++
+* `trailing-space` treats trailing whitespaces at the end of the line
+ as an error (enabled by default).
+* `space-before-tab` treats a space character that appears immediately
+ before a tab character in the initial indent part of the line as an
+ error (enabled by default).
+* `indent-with-non-tab` treats a line that is indented with 8 or more
+ space characters as an error (not enabled by default).
+