Documentation: Describe other situations where -z affects git diff

diff --git a/Documentation/git-describe.txt b/Documentation/git-describe.txt
index 2f979167819f0e4500b998b41092e18ef053cead..7ef9d51577594ae6a27f71bae251d6ee2f52befa 100644 (file)
--- a/Documentation/git-describe.txt
+++ b/Documentation/git-describe.txt
@@ -8,7 +8,9 @@ git-describe - Show the most recent tag that is reachable from a commit
 
 SYNOPSIS
 --------
+[verse]
 'git describe' [--all] [--tags] [--contains] [--abbrev=<n>] <committish>...
+'git describe' [--all] [--tags] [--contains] [--abbrev=<n>] --dirty[=<mark>]
 
 DESCRIPTION
 -----------
@@ -27,6 +29,11 @@ OPTIONS
 <committish>...::
        Committish object names to describe.
 
+--dirty[=<mark>]::
+       Describe the working tree.
+       It means describe HEAD and appends <mark> (`-dirty` by
+       default) if the working tree is dirty.
+
 --all::
        Instead of using only the annotated tags, use any ref
        found in `.git/refs/`.  This option enables matching
@@ -98,8 +105,11 @@ The number of additional commits is the number
 of commits which would be displayed by "git log v1.0.4..parent".
 The hash suffix is "-g" + 7-char abbreviation for the tip commit
 of parent (which was `2414721b194453f058079d897d13c4e377f92dc6`).
+The "g" prefix stands for "git" and is used to allow describing the version of
+a software depending on the SCM the software is managed with. This is useful
+in an environment where people may use different SCMs.
 
-Doing a 'git-describe' on a tag-name will just show the tag name:
+Doing a 'git describe' on a tag-name will just show the tag name:
 
        [torvalds@g5 git]$ git describe v1.0.4
        v1.0.4
@@ -129,13 +139,13 @@ be sufficient to disambiguate these commits.
 SEARCH STRATEGY
 ---------------
 
-For each committish supplied, 'git-describe' will first look for
+For each committish supplied, 'git describe' will first look for
 a tag which tags exactly that commit.  Annotated tags will always
 be preferred over lightweight tags, and tags with newer dates will
 always be preferred over tags with older dates.  If an exact match
 is found, its name will be output and searching will stop.
 
-If an exact match was not found, 'git-describe' will walk back
+If an exact match was not found, 'git describe' will walk back
 through the commit history to locate an ancestor commit which
 has been tagged.  The ancestor's tag will be output along with an
 abbreviation of the input committish's SHA1.