From cb9dd1dd24804865ff6698c98b810a449c4f102e Mon Sep 17 00:00:00 2001
From: Mike Bland <mbland@acm.org>
Date: Tue, 3 Jul 2018 09:36:24 -0400
Subject: [PATCH] travis: Enable build with default Linux image Bash

Since I'm paranoid that we might need to resolve an issue specific to
4.3.11(1)-release (or whatever the Bash version is in the stock Travis
Linux image). Also, I didn't want to hold up #116 any longer with more
tiny requests.
---
 .travis.yml | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/.travis.yml b/.travis.yml
index 339e2892..78216cfa 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,6 +4,7 @@ os:
 - linux
 
 env:
+  - BASHVER=
   - BASHVER=3.2
   - BASHVER=4.0
   - BASHVER=4.1
@@ -20,7 +21,7 @@ services:
 
 script:
 - |
-  if [[ "$TRAVIS_OS_NAME" == 'linux' ]]; then
+  if [[ "$TRAVIS_OS_NAME" == 'linux' && -n "$BASHVER" ]]; then
     docker build --build-arg bashver=${BASHVER} --tag bats/bats:bash-${BASHVER} .
     docker run -it bash:${BASHVER} --version
     time docker run -it bats/bats:bash-${BASHVER} --tap /opt/bats/test