Merge branch 'jc/doc-gc-prune-now' into maint

diff --git a/Documentation/git-gc.txt b/Documentation/git-gc.txt
index 52234987f9993a0b9f6d3f50ce9b26e074f3b58d..fa1510480a1d55236f2c467a0d4e901bbc60dc84 100644 (file)
--- a/Documentation/git-gc.txt
+++ b/Documentation/git-gc.txt
@@ -63,8 +63,11 @@ automatic consolidation of packs.
 --prune=<date>::
        Prune loose objects older than date (default is 2 weeks ago,
        overridable by the config variable `gc.pruneExpire`).
-       --prune=all prunes loose objects regardless of their age.
-       --prune is on by default.
+       --prune=all prunes loose objects regardless of their age (do
+       not use --prune=all unless you know exactly what you are doing.
+       Unless the repository is quiescent, you will lose newly created
+       objects that haven't been anchored with the refs and end up
+       corrupting your repository).  --prune is on by default.
 
 --no-prune::
        Do not prune any loose objects.