When scanning fixes from current(HEAD) branch, local tags were included
and reported as version. For example:
  $ git tag --contains <commit_id> --merged
  20.11_backport_202010506   // user tag
  v20.11
  v20.11.1

This patch matches DPDK officail version pattern in search, selects
the most early tag. Official tag pattern: "v<major>.<minor>"

Fixes: 752d8e097ec1 ("scripts: show fixes with release version of bug")
Cc: Thomas Monjalon <redacted>
Cc: stable@dpdk.org

Signed-off-by: Xueming Li <redacted>
---
 devtools/git-log-fixes.sh | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/devtools/git-log-fixes.sh b/devtools/git-log-fixes.sh
index 210c8dcf25..5fc57da913 100755
--- a/devtools/git-log-fixes.sh
+++ b/devtools/git-log-fixes.sh

@@ -38,12 +38,13 @@ range="$*"
 # get major release version of a commit
 commit_version () # <hash>
 {
+       local VER="v*.*"
        # use current branch as history reference
        local refbranch=$(git rev-parse --abbrev-ref HEAD)
-       local tag=$( (git tag -l --contains $1 --merged $refbranch 2>&- ||
+       local tag=$( (git tag -l $VER --contains $1 --sort=creatordate --merged $refbranch 2>&- ||
                # tag --merged option has been introduced in git 2.7.0
                # below is a fallback in case of old git version
-               for t in $(git tag -l --contains $1) ; do
+               for t in $(git tag -l $VER --contains $1) ; do
                        git branch $refbranch --contains $t |
                        sed "s,.\+,$t,"
                done) |
--