Merge branch 'jk/trailers-parse'

"git interpret-trailers" has been taught a "--parse" and a few
other options to make it easier for scripts to grab existing
trailer lines from a commit log message.

* jk/trailers-parse:
  doc/interpret-trailers: fix "the this" typo
  pretty: support normalization options for %(trailers)
  t4205: refactor %(trailers) tests
  pretty: move trailer formatting to trailer.c
  interpret-trailers: add --parse convenience option
  interpret-trailers: add an option to unfold values
  interpret-trailers: add an option to show only existing trailers
  interpret-trailers: add an option to show only the trailers
  trailer: put process_trailers() options into a struct

1 files changed, 4 insertions, 1 deletions

diff --git a/Documentation/pretty-formats.txt b/Documentation/pretty-formats.txt
index 973d19606b..d433d50f81 100644
--- a/Documentation/pretty-formats.txt
+++ b/Documentation/pretty-formats.txt
@@ -205,7 +205,10 @@ endif::git-rev-list[]
 - '%><(<N>)', '%><|(<N>)': similar to '% <(<N>)', '%<|(<N>)'
   respectively, but padding both sides (i.e. the text is centered)
 - %(trailers): display the trailers of the body as interpreted by
-  linkgit:git-interpret-trailers[1]
+  linkgit:git-interpret-trailers[1]. If the `:only` option is given,
+  omit non-trailer lines from the trailer block.  If the `:unfold`
+  option is given, behave as if interpret-trailer's `--unfold` option
+  was given. E.g., `%(trailers:only:unfold)` to do both.
 
 NOTE: Some placeholders may depend on other options given to the
 revision traversal engine. For example, the `%g*` reflog options will