Author: Daniel Baumann <daniel.baumann@progress-linux.org>
Description: Using python3 in commit-msg hook (Closes: #891538).

diff -Naurp gitlint.orig/gitlint/files/commit-msg gitlint/gitlint/files/commit-msg
--- gitlint.orig/gitlint/files/commit-msg
+++ gitlint/gitlint/files/commit-msg
@@ -26,7 +26,7 @@ fi
 
 run_gitlint(){
    echo "gitlint: checking commit message..."
-   python -m gitlint.cli --staged --msg-filename "$1"
+   python3 -m gitlint.cli --staged --msg-filename "$1"
    gitlint_exit_code=$?
 }