create_tarball: Sort tags as version numbers instead of as text

Signed-off-by: Slávek Banko <slavek.banko@axis.cz>

create_tarball

@@ -85,7 +85,7 @@ fi
 MODULE=${SUBROOT#$TDEROOT/main/}
 
 # Calculate version
-tag=`git tag | sort -r | while read t; do \
+tag=`git tag | sort -t. -k 1,1nr -k 2,2nr -k 3,3nr -k 4,4nr | while read t; do \
      git branch --contains $t | cut -c 3- | grep -x "$branch" >/dev/null && \
      echo "$t..HEAD" && break; done`