sub-process: move sub-process functions into separate files

diff --git a/Documentation/git-describe.txt b/Documentation/git-describe.txt
index 8755f3af7bcd16b564fdd01563e36d3cc4103c07..26f19d3b072aa358043fbf79f3057a11aee2fdb2 100644 (file)
--- a/Documentation/git-describe.txt
+++ b/Documentation/git-describe.txt
@@ -30,9 +30,14 @@ OPTIONS
        Commit-ish object names to describe.  Defaults to HEAD if omitted.
 
 --dirty[=<mark>]::
-       Describe the working tree.
-       It means describe HEAD and appends <mark> (`-dirty` by
-       default) if the working tree is dirty.
+--broken[=<mark>]::
+       Describe the state of the working tree.  When the working
+       tree matches HEAD, the output is the same as "git describe
+       HEAD".  If the working tree has local modification "-dirty"
+       is appended to it.  If a repository is corrupt and Git
+       cannot determine if there is local modification, Git will
+       error out, unless `--broken' is given, which appends
+       the suffix "-broken" instead.
 
 --all::
        Instead of using only the annotated tags, use any ref