came into being: use the feature iteratively to feed the interesting
block in the preimage back into `-S`, and keep going until you get the
very first version of the block.
++
+Binary files are searched as well.
-G<regex>::
Look for differences whose patch text contains added/removed
-S"regexec\(regexp" --pickaxe-regex` will not (because the number of
occurrences of that string did not change).
+
+Unless `--text` is supplied patches of binary files without a textconv
+filter will be ignored.
++
See the 'pickaxe' entry in linkgit:gitdiffcore[7] for more
information.