Fix Travis sorting so 11 comes first

Author: tianon

.travis.yml

@@ -2,6 +2,12 @@ language: bash
 services: docker
 
 env:
+  - VERSION=11
+  - VERSION=11 FORCE_DEB_BUILD=1
+  - VERSION=11 VARIANT=alpine
+  - VERSION=10
+  - VERSION=10 FORCE_DEB_BUILD=1
+  - VERSION=10 VARIANT=alpine
   - VERSION=9.6
   - VERSION=9.6 FORCE_DEB_BUILD=1
   - VERSION=9.6 VARIANT=alpine
@@ -14,12 +20,6 @@ env:
   - VERSION=9.3
   - VERSION=9.3 FORCE_DEB_BUILD=1
   - VERSION=9.3 VARIANT=alpine
-  - VERSION=11
-  - VERSION=11 FORCE_DEB_BUILD=1
-  - VERSION=11 VARIANT=alpine
-  - VERSION=10
-  - VERSION=10 FORCE_DEB_BUILD=1
-  - VERSION=10 VARIANT=alpine
 
 install:
   - git clone https://github.com/docker-library/official-images.git ~/official-images

update.sh

@@ -9,6 +9,9 @@ if [ ${#versions[@]} -eq 0 ]; then
 fi
 versions=( "${versions[@]%/}" )
 
+# sort version numbers with highest last (so it goes first in .travis.yml)
+IFS=$'\n'; versions=( $(echo "${versions[*]}" | sort -V) ); unset IFS
+
 defaultDebianSuite='stretch-slim'
 declare -A debianSuite=(
 	#[9.6]='jessie'