From 8be34a6d9b48f69e33d6405d062b7ae2cd076812 Mon Sep 17 00:00:00 2001
From: Juergen Hoetzel <juergen@archlinux.org>
Date: Mon, 29 May 2017 18:31:00 +0200
Subject: [PATCH] Handle missing VERSION_ID gracefully

---
 scripts/obtain/dotnet-install.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/scripts/obtain/dotnet-install.sh b/scripts/obtain/dotnet-install.sh
index 83ad96d17d3..44903061bab 100755
--- a/scripts/obtain/dotnet-install.sh
+++ b/scripts/obtain/dotnet-install.sh
@@ -139,7 +139,7 @@ get_distro_specific_os_name() {
     else
         if [ -e /etc/os-release ]; then
             . /etc/os-release
-            os=$(get_os_download_name_from_platform "$ID.$VERSION_ID" || echo "")
+            os=$(get_os_download_name_from_platform "$ID.${VERSION_ID:-}" || echo "")
             if [ -n "$os" ]; then
                 echo "$os"
                 return 0
@@ -147,7 +147,7 @@ get_distro_specific_os_name() {
         fi
     fi
     
-    say_err "OS name could not be detected: $ID.$VERSION_ID"
+    say_err "OS name could not be detected: $ID.${VERSION_ID:-UNDEFINED}"
     return 1
 }