Fix shellcheck issues
diff --git a/ci/run-qemu.sh b/ci/run-qemu.sh
index b2f457d..6fba629 100644
--- a/ci/run-qemu.sh
+++ b/ci/run-qemu.sh
@@ -1,3 +1,5 @@
+#!/usr/bin/env sh
+
# Initial script which is run inside of all qemu images. The first argument to
# this script (as arranged by the qemu image itself) is the path to where the
# libc crate is mounted.
@@ -10,11 +12,11 @@
set -ex
-ROOT=$1
-cp -r $ROOT/libc /tmp/libc
+ROOT="${1}"
+cp -r "${ROOT}/libc" /tmp/libc
cd /tmp/libc
-TARGET=$(cat $ROOT/TARGET)
+TARGET="$(cat "${ROOT}/TARGET")"
export CARGO_TARGET_DIR=/tmp
case $TARGET in
@@ -24,9 +26,9 @@
;;
*)
- echo "Unknown target: $TARGET"
+ echo "Unknown target: ${TARGET}"
exit 1
;;
esac
-exec sh ci/run.sh $TARGET
+exec sh ci/run.sh "${TARGET}"