run-command: add env_array, an optional argv_array for env

diff --git a/Documentation/git-receive-pack.txt b/Documentation/git-receive-pack.txt
index 2d4b45242cd68724f897624a4fde3ce206db54b0..9016960e27164a11d687ed16b34245667e271fe3 100644 (file)
--- a/Documentation/git-receive-pack.txt
+++ b/Documentation/git-receive-pack.txt
@@ -89,6 +89,19 @@ the following environment variables:
        "git push --signed" sent a bogus nonce.
 `OK`;;
        "git push --signed" sent the nonce we asked it to send.
+`SLOP`;;
+       "git push --signed" sent a nonce different from what we
+       asked it to send now, but in a previous session.  See
+       `GIT_PUSH_CERT_NONCE_SLOP` environment variable.
+
+`GIT_PUSH_CERT_NONCE_SLOP`::
+       "git push --signed" sent a nonce different from what we
+       asked it to send now, but in a different session whose
+       starting time is different by this many seconds from the
+       current session.  Only meaningful when
+       `GIT_PUSH_CERT_NONCE_STATUS` says `SLOP`.
+       Also read about `receive.certnonceslop` variable in
+       linkgit:git-config[1].
 
 This hook is called before any refname is updated and before any
 fast-forward checks are performed.