completion: mention the oldest version we need to support

This is more of a note for git-completion.bash contributors, not
users. The bash version is from MacOS [1]. Most Linux distros should
be 4.x at this point.

[1] https://public-inbox.org/git/%3CCAPig+cQXT1ov4MjzSzqiLBzr4wN1XcP7aSxMP+_dhtWtYwhDAA@mail.gmail.com%3E/

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/contrib/completion/git-completion.bash b/contrib/completion/git-completion.bash
index 63e34cd588564d77f49aa5ff0505f25439750915..d59b9bb4d8c0a028c5e4661227cd0d1bfbed8978 100644 (file)
--- a/contrib/completion/git-completion.bash
+++ b/contrib/completion/git-completion.bash
@@ -29,6 +29,8 @@
 # tell the completion to use commit completion.  This also works with aliases
 # of form "!sh -c '...'".  For example, "!sh -c ': git commit ; ... '".
 #
+# Compatible with bash 3.2.57.
+#
 # You can set the following environment variables to influence the behavior of
 # the completion routines:
 #