patchdoc/git-format-patch: link git-apply

From: Alexander Ziaee <ziaee@google.com>

git formatted patches can be applied with git-apply(1), so link git-apply(1) in git-format-patch(1) § see also.

Signed-off-by:	Alexander Ziaee <ziaee@google.com>
---
    doc/git-format-patch: link git-apply

Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-git-1785%2Fconcussious%2Fmaster-v1
Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-git-1785/concussious/master-v1
Pull-Request: https://github.com/git/git/pull/1785

 Documentation/git-format-patch.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

"Alexander Ziaee via GitGitGadget" <gitgitgadget@gmail.com> writes:

Not necessarily. They are meant to be consumed via "am", which knows how to unwrap MIME, split the message into the log part and the diff part, and create a commit out of the result, by calling "mailinfo", "apply" and "comimt-tree" as the underlying mechanism.

Simple patches can often be consumed by "apply", but that is not guaranteed.

To put it another way, if we link "apply" because format-patch output can (sometimes) be consumed with the command in order to use its the diff part, we would need to link "mailinfo" because the format-patch output can (always) be consumed with the command in order to extract the log message part and separate the diff part out. So I am modereately negative on this change, especially we already refer readers to "am" (and "am" in turn refers to "apply").

Thanks.