Nowhere does the diff man page mention the from-file, to-file syntax as it
does in the full documentation:
> In the simplest case, two file names from-file and to-file are given, and
> diff compares the contents of from-file and to-file.
>
Source:
https://www.gnu.org/software/diffutils/manual/dif
Reproduce with:
diff -u driver.c.master driver.c > d.diff
patch < d.diff
driver.c is patched instead of the intended driver.c.master. If I change
the name to master_driver.c it works as intended.
The use case:
When I want to merge a couple lines of changes from another git branch, I
sometimes re