[PATCH] config.txt: update versioncmp.prereleaseSuffix

["Nguyễn Thái Ngọc Duy" <pclouds@gmail.com>]

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 Documentation/config.txt | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/Documentation/config.txt b/Documentation/config.txt
index 69a7345..fe8705d 100644
--- a/Documentation/config.txt
+++ b/Documentation/config.txt
@@ -2527,8 +2527,13 @@ versionsort.prereleaseSuffix::
 	When version sort is used in linkgit:git-tag[1], prerelease
 	tags (e.g. "1.0-rc1") may appear after the main release
 	"1.0". By specifying the suffix "-rc" in this variable,
-	"1.0-rc1" will appear before "1.0". One variable assignment
-	per suffix.
+	"1.0-rc1" will appear before "1.0".
++
+This variable can be specified multiple times, once per suffix. The
+order of suffixes in the config file determines the sorting order
+(e.g. if "-pre" appears before "-rc" in the config file then 1.0-preXX
+is sorted before 1.0-rcXX). The sorting order between different
+suffixes is undefined if they are in multiple config files.
 
 web.browser::
 	Specify a web browser that may be used by some commands.
-- 
2.3.0.rc1.137.g477eb31