[PATCHv1+eps] git-repack.txt: Clarify implications of -a for dumb protocols

[Michael J Gruber <git@drmicha.warpmail.net>]

The current text makes some users feel uneasy, worrying whether
'-a' could lead to corrupt repositories. Clarify that '-a'
may lead to performance issues only for dumb protocols.

Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
---
Is that clear enough but concise?

Applies to maint.

[Sorry for the resend, I managed to mistype the subject.]

 Documentation/git-repack.txt |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/Documentation/git-repack.txt b/Documentation/git-repack.txt
index aaa8852..8af5505 100644
--- a/Documentation/git-repack.txt
+++ b/Documentation/git-repack.txt
@@ -32,7 +32,10 @@ OPTIONS
 	pack everything referenced into a single pack.
 	Especially useful when packing a repository that is used
 	for private development and there is no need to worry
-	about people fetching via dumb protocols from it.  Use
+	about people fetching via dumb protocols from it. 
+	(Over dumb protocols, one would have to fetch the whole new
+	pack in order to get any contained object, no matter how
+	many other objects in that pack exist locally already.) Use
 	with '-d'.  This will clean up the objects that `git prune`
 	leaves behind, but `git fsck --full` shows as
 	dangling.
-- 
1.6.3.1.268.g94d6d1