From 3bc03796e9274e10fe412700e6128d7538ab3046 Mon Sep 17 00:00:00 2001
From: Mike Bland <mbland@acm.org>
Date: Wed, 15 Feb 2017 10:07:22 -0500
Subject: [PATCH] exec-test: Use printf -v in bats_strip_string

---
 libexec/bats-exec-test | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/libexec/bats-exec-test b/libexec/bats-exec-test
index fce77aa..55f3281 100755
--- a/libexec/bats-exec-test
+++ b/libexec/bats-exec-test
@@ -162,8 +162,10 @@ bats_print_failed_command() {
   bats_frame_lineno "$frame" 'lineno'
 
   local failed_line="$(bats_extract_line "$filename" "$lineno")"
-  local failed_command="$(bats_strip_string "$failed_line")"
-  echo -n "#   \`${failed_command}' "
+  local failed_command
+
+  bats_strip_string "$failed_line" 'failed_command'
+  printf '%s' "#   \`${failed_command}' "
 
   if [ $status -eq 1 ]; then
     echo "failed"
@@ -198,8 +200,8 @@ bats_extract_line() {
 }
 
 bats_strip_string() {
-  local string="$1"
-  printf "%s" "$string" | sed -e "s/^[ "$'\t'"]*//" -e "s/[ "$'\t'"]*$//"
+  [[ "$1" =~ ^[[:space:]]*(.*)[[:space:]]*$ ]]
+  printf -v "$2" '%s' "${BASH_REMATCH[1]}"
 }
 
 bats_trim_filename() {