git-sh-setup.sh: add variable to use the stuck-long mode

diff --git a/Documentation/revisions.txt b/Documentation/revisions.txt
index 71dcd12ebd25811ed2c4c41717371f3a97321288..5a286d0d61ffc5b3daa00d7d550d5931a91b35ec 100644 (file)
--- a/Documentation/revisions.txt
+++ b/Documentation/revisions.txt
@@ -58,6 +58,9 @@ the '$GIT_DIR/refs' directory or from the '$GIT_DIR/packed-refs' file.
 While the ref name encoding is unspecified, UTF-8 is preferred as
 some output processing may assume ref names in UTF-8.
 
+'@'::
+  '@' alone is a shortcut for 'HEAD'.
+
 '<refname>@\{<date>\}', e.g. 'master@\{yesterday\}', 'HEAD@\{5 minutes ago\}'::
   A ref followed by the suffix '@' with a date specification
   enclosed in a brace
@@ -85,7 +88,7 @@ some output processing may assume ref names in UTF-8.
   branch 'blabla' then '@\{1\}' means the same as 'blabla@\{1\}'.
 
 '@\{-<n>\}', e.g. '@\{-1\}'::
-  The construct '@\{-<n>\}' means the <n>th branch checked out
+  The construct '@\{-<n>\}' means the <n>th branch/commit checked out
   before the current one.
 
 '<branchname>@\{upstream\}', e.g. 'master@\{upstream\}', '@\{u\}'::