travis-ci: fix "skip_branch_tip_with_tag()" string comparison

09f5e97 ("travis-ci: skip a branch build if equal tag is present",
2017-09-17) introduced the "skip_branch_tip_with_tag" function with
a broken string comparison. Fix it!

Reported-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Lars Schneider <larsxschneider@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/ci/lib-travisci.sh b/ci/lib-travisci.sh
index 9c4ae9b..b3ed0a0 100755 (executable)
--- a/ci/lib-travisci.sh
+++ b/ci/lib-travisci.sh
@@ -14,7 +14,7 @@ skip_branch_tip_with_tag () {
        # of a tag.
 
        if TAG=$(git describe --exact-match "$TRAVIS_BRANCH" 2>/dev/null) &&
-               $TAG != $TRAVIS_BRANCH
+               test "$TAG" != "$TRAVIS_BRANCH"
        then
                echo "Tip of $TRAVIS_BRANCH is exactly at $TAG"
                exit 0