git-bisect: modernization

diff --git a/Documentation/git-rev-list.txt b/Documentation/git-rev-list.txt
index 4f145eaba47175e48dd592ffe5018be5cb4cb375..3fa45b81cc6de7b5104d343538c9ad040c208ce1 100644 (file)
--- a/Documentation/git-rev-list.txt
+++ b/Documentation/git-rev-list.txt
@@ -26,6 +26,7 @@ SYNOPSIS
             [ [\--objects | \--objects-edge] [ \--unpacked ] ]
             [ \--pretty | \--header ]
             [ \--bisect ]
+            [ \--bisect-vars ]
             [ \--merge ]
             [ \--reverse ]
             [ \--walk-reflogs ]
@@ -249,6 +250,18 @@ introduces a regression is thus reduced to a binary search: repeatedly
 generate and test new 'midpoint's until the commit chain is of length
 one.
 
+--bisect-vars::
+
+This calculates the same as `--bisect`, but outputs text ready
+to be eval'ed by the shell. These lines will assign the name of
+the midpoint revision to the variable `bisect_rev`, and the
+expected number of commits to be tested after `bisect_rev` is
+tested to `bisect_nr`, the expected number of commits to be
+tested if `bisect_rev` turns out to be good to `bisect_good`,
+the expected number of commits to be tested if `bisect_rev`
+turns out to be bad to `bisect_bad`, and the number of commits
+we are bisecting right now to `bisect_all`.
+
 --
 
 Commit Ordering