Fix quoting around variables, especially arrays.

Other than pure quoting, this involved:
 - swapping */@ for array access in a few places
 - fiddling with printf in a pipeline
 - replacing `$(echo ${array[@]})` with `${array[*]}`
 - replacing `echo $(...)` with `...`

When searching for these things, I used the command:

    grep -Prn --exclude-dir=.git '(?<!["=]|\[\[ |\[\[ -[zn] )\$(?!{?#|\(|\? )'

and ignored a bunch of false positives.

1 files changed, 4 insertions, 4 deletions

diff --git a/test/test.d/signed-packages.sh b/test/test.d/signed-packages.sh
index 03566ef..4eccb41 100755
--- a/test/test.d/signed-packages.sh
+++ b/test/test.d/signed-packages.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 
-curdir=$(readlink -e $(dirname $0))
+curdir=$(readlink -e "$(dirname "$0")")
 . "${curdir}/../lib/common.inc"
 
 testAddSignedPackage() {
@@ -18,8 +18,8 @@ testAddInvalidSignedPackage() {
 	local p
 	releasePackage extra 'pkg-simple-a' 'i686'
 	for p in "${STAGING}"/extra/*${PKGEXT}; do
-		unxz $p
-		xz -0 ${p%%.xz}
+		unxz "$p"
+		xz -0 "${p%%.xz}"
 	done
 	../db-update >/dev/null 2>&1 && fail "db-update should fail when a signature is invalid!"
 }
@@ -28,7 +28,7 @@ testAddBrokenSignature() {
 	local s
 	releasePackage extra 'pkg-simple-a' 'i686'
 	for s in "${STAGING}"/extra/*.sig; do
-		echo 0 > $s
+		echo 0 > "$s"
 	done
 	../db-update >/dev/null 2>&1 && fail "db-update should fail when a signature is broken!"
 }