From 2ca97490afd02e104ee989baaab779199b36651b Mon Sep 17 00:00:00 2001
From: Martin Afanasjew
Date: Wed, 6 Apr 2016 01:45:02 +0200
Subject: brew.sh: fix HOMEBREW_OS_VERSION on Linux et al.

On Linux (and other non-OS X platforms), `HOMEBREW_OS_VERSION` was
*always* replaced with the product name, leading to less useful user
agent. E.g., on a reasonably up-to-date Debian system:
  Linuxbrew/0.9.9 (Linux; unknown Linuxbrew)

With this fix the user agent is instead (first if `lsb_release` is
available and outputs something, second otherwise):
  Linuxbrew/0.9.9 (Linux; unknown Debian GNU/Linux 8.3 (jessie))
  Linuxbrew/0.9.9 (Linux; unknown 3.16.0-4-amd64)
---
 Library/brew.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'Library')

diff --git a/Library/brew.sh b/Library/brew.sh
index d10c09958..1886c1cc1 100644
--- a/Library/brew.sh
+++ b/Library/brew.sh
@@ -93,7 +93,7 @@ then
 else
   HOMEBREW_PRODUCT="${HOMEBREW_SYSTEM}brew"
   [[ -n "$HOMEBREW_LINUX" ]] && HOMEBREW_OS_VERSION="$(lsb_release -sd 2>/dev/null)"
-  HOMEBREW_OS_VERSION="${HOMEBREW_PRODUCT:=$(uname -r)}"
+  : "${HOMEBREW_OS_VERSION:=$(uname -r)}"
 fi
 HOMEBREW_USER_AGENT="$HOMEBREW_PRODUCT/$HOMEBREW_VERSION ($HOMEBREW_SYSTEM; $HOMEBREW_PROCESSOR $HOMEBREW_OS_VERSION)"
 HOMEBREW_CURL_VERSION="$("$HOMEBREW_CURL" --version 2>/dev/null | head -n1 | awk '{print $1"/"$2}')"
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