[PATCH v2] doc: point to diff attribute in patch format docs

From: Peter Oliver <git@mavit.org.uk>

From the documentation for generating patch text with diff-related commands, refer to the documentation for the diff attribute.

This attribute influences the way that patches are generated, but this was previously not mentioned in e.g., the git-diff manpage.

Signed-off-by: Peter Oliver <git@mavit.org.uk>
---
    doc: point to diff attribute in patch format docs
    
    From the documentation for generating patch text with diff-related
    commands, refer to the documentation for the diff attribute.
    
    This attribute influences the way that patches are generated, but this
    was previously not mentioned in e.g., the git-diff manpage.
    
    v2: Mention the specific relevant section of the gitattributes manual.
    Thanks to Junio C Hamano for the suggestion.

Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-940%2Fmavit%2Fdiff-gitattributes-v2
Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-940/mavit/diff-gitattributes-v2
Pull-Request: https://github.com/gitgitgadget/git/pull/940

Range-diff vs v1:

 1:  6f87f3962b84 ! 1:  191d81ef61a5 doc: point to diff attribute in patch format docs
     @@ Documentation/diff-generate-patch.txt: separate lines indicate the old and the n
             rename to a
       
      +5.  Hunk headers mention the name of the function to which the hunk
     -+    applies.  See linkgit:gitattributes[5] for details of how to tailor
     -+    to this to specific languages.
     ++    applies.  See "Defining a custom hunk-header" in
     ++    linkgit:gitattributes[5] for details of how to tailor to this to
     ++    specific languages.
      +
       
       Combined diff format

 Documentation/diff-generate-patch.txt | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)