[PATCH] cg-object-id: comment the alternate id shortcut parsing

[Jonas Fonseca <fonseca@diku.dk>]

Add comment about why Cogito's own 4 digit id shortcut parser is needed.

Signed-off-by: Jonas Fonseca <fonseca@diku.dk>

---
commit 3c14cded46e110396127fc5b5e65883eb5cd60b9
tree 593da711de14cfc3f8dc1fd5773990902568b42e
parent 36c0d9fae209ab7fa889333e8eebef22e7f0f55c
author Jonas Fonseca <fonseca@diku.dk> Wed, 07 Dec 2005 08:17:04 +0100
committer Jonas Fonseca <fonseca@antimatter.localdomain> Wed, 07 Dec 2005 08:17:04 +0100

 cg-object-id |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/cg-object-id b/cg-object-id
index 56d9f91..ea04dca 100755
--- a/cg-object-id
+++ b/cg-object-id
@@ -52,7 +52,9 @@ normalize_id()
 		id="$revid"
 		valid=1
 
-	# Short id's must be lower case and at least 4 digits.
+	# Short id's must be lower case and at least 4 digits. git-rev-parse(1)
+	# allows only down to 5 digits and we want to show the list of matched
+	# ids.
 	elif [[ "$id" == [0-9a-f][0-9a-f][0-9a-f][0-9a-f]* ]]; then
 		idpref=${id:0:2}
 		idpost=${id:2}

-- 
Jonas Fonseca