Add hotfix and check for go version

Author: andyedison

tools/build_version_flags.sh

@@ -25,12 +25,24 @@ DEFAULT_BUILD_GIT_REV=$(git rev-parse HEAD)
 DEFAULT_BUILD_GIT_BRANCH=$(git rev-parse --abbrev-ref HEAD)
 DEFAULT_BUILD_TIME=$(LC_ALL=C date)
 
-echo "\
+GO_MINOR_VER=$(go version | cut -d ' ' -f 3 | cut -d '.' -f 2)
+if [[ $((GO_MINOR_VER)) -ge 23 ]]; then
+  echo "\
   -X 'vitess.io/vitess/go/vt/servenv.buildHost=$(hostname)' \
   -X 'vitess.io/vitess/go/vt/servenv.buildUser=$(whoami)' \
   -X 'vitess.io/vitess/go/vt/servenv.buildGitRev=${BUILD_GIT_REV:-$DEFAULT_BUILD_GIT_REV}' \
   -X 'vitess.io/vitess/go/vt/servenv.buildGitBranch=${BUILD_GIT_BRANCH:-$DEFAULT_BUILD_GIT_BRANCH}' \
   -X 'vitess.io/vitess/go/vt/servenv.buildTime=${BUILD_TIME:-$DEFAULT_BUILD_TIME}' \
   -X 'vitess.io/vitess/go/vt/servenv.jenkinsBuildNumberStr=${BUILD_NUMBER}' \
   -checklinkname=0
-"
+  "
+else
+  echo "\
+  -X 'vitess.io/vitess/go/vt/servenv.buildHost=$(hostname)' \
+  -X 'vitess.io/vitess/go/vt/servenv.buildUser=$(whoami)' \
+  -X 'vitess.io/vitess/go/vt/servenv.buildGitRev=${BUILD_GIT_REV:-$DEFAULT_BUILD_GIT_REV}' \
+  -X 'vitess.io/vitess/go/vt/servenv.buildGitBranch=${BUILD_GIT_BRANCH:-$DEFAULT_BUILD_GIT_BRANCH}' \
+  -X 'vitess.io/vitess/go/vt/servenv.buildTime=${BUILD_TIME:-$DEFAULT_BUILD_TIME}' \
+  -X 'vitess.io/vitess/go/vt/servenv.jenkinsBuildNumberStr=${BUILD_NUMBER}' \
+  "
+fi