am: Fix launching of pager

diff --git a/Documentation/pretty-formats.txt b/Documentation/pretty-formats.txt
index 0683fb3a3d34e89c67c6e37f2ee96adcd2821ea0..1686a54d22a746036b997d6eb8d5b85ca1d79c5d 100644 (file)
--- a/Documentation/pretty-formats.txt
+++ b/Documentation/pretty-formats.txt
@@ -134,6 +134,7 @@ The placeholders are:
 - '%C(...)': color specification, as described in color.branch.* config option
 - '%m': left, right or boundary mark
 - '%n': newline
+- '%%': a raw '%'
 - '%x00': print a byte from a hex code
 - '%w([<w>[,<i1>[,<i2>]]])': switch line wrapping, like the -w option of
   linkgit:git-shortlog[1].
@@ -144,6 +145,14 @@ insert an empty string unless we are traversing reflog entries (e.g., by
 `git log -g`). The `%d` placeholder will use the "short" decoration
 format if `--decorate` was not already provided on the command line.
 
+If you add a `{plus}` (plus sign) after '%' of a placeholder, a line-feed
+is inserted immediately before the expansion if and only if the
+placeholder expands to a non-empty string.
+
+If you add a `-` (minus sign) after '%' of a placeholder, line-feeds that
+immediately precede the expansion are deleted if and only if the
+placeholder expands to an empty string.
+
 * 'tformat:'
 +
 The 'tformat:' format works exactly like 'format:', except that it