dist: replace all '-' with '.'

Upstream: no

There is a code error that only first '-' is converted to '.'.
Fix it.

Signed-off-by: Kairui Song <kasong@tencent.com>

dist/scripts/lib-version.sh

@@ -235,7 +235,7 @@ _get_rel_info_from_tag() {
 	fi
 
 	if [[ $rel ]]; then
-		echo "${rel/-/.}"
+		echo "${rel//-/.}"
 	fi
 }