1 files changed, 5 insertions, 0 deletions

diff --git a/subcmds/manifest.py b/subcmds/manifest.py
index d9f242ee..399e241e 100644
--- a/subcmds/manifest.py
+++ b/subcmds/manifest.py
@@ -34,6 +34,11 @@ The manifest and (if present) local_manifest.xml are combined
 together to produce a single manifest file.  This file can be stored
 in a Git repository for use during future 'repo init' invocations.
 
+The -r option can be used to generate a manifest file with project
+revisions set to the current commit hash.  These are known as
+"revision locked manifests", as they don't follow a particular branch.
+In this case, the 'upstream' attribute is set to the ref we were on
+when the manifest was generated.
 """
 
   @property