may want to override its decision, either because a blob contains binary
data later in the file, or because the content, while technically
composed of text characters, is opaque to a human reader. For example,
-many postscript files contain only ascii characters, but produce noisy
+many postscript files contain only ASCII characters, but produce noisy
and meaningless diffs.
The simplest way to mark a file as binary is to unset the diff
However, one may also want to specify other diff driver attributes. For
example, you might want to use `textconv` to convert postscript files to
-an ascii representation for human viewing, but otherwise treat them as
+an ASCII representation for human viewing, but otherwise treat them as
binary files. You cannot specify both `-diff` and `diff=ps` attributes.
The solution is to use the `diff.*.binary` config option: