Fix possible quoting problem and introduce test

packaging/pre-commit

@@ -46,9 +46,12 @@ then
 	exit 1
 fi
 
-status=0
+# Files we will check in their entirety
 git show :ChangeLog > /tmp/staged-ChangeLog.$$
 git show :NEWS > /tmp/staged-NEWS.$$
+git show :sbin/firehol.in > /tmp/staged-sbin-firehol.in$$
+
+status=0
 
 clogver=`sed -ne '1s/.*(\(.*\)).*/\1/p' /tmp/staged-ChangeLog.$$`
 newsver=`head -n 10 /tmp/staged-NEWS.$$ | sed -ne 's/.*\<\([1-9][0-9]*\.[0-9][0-9]*[0-9A-Za-z.-]*\).*/\1/p' | head -n 1`
@@ -74,6 +77,29 @@ then
   status=1
 fi
 
+# Find commands that have been enclosed in quotes and remove anything after
+#  if nothing matched the substitution, proceed to the next line
+#  if the command is used in a -z check, proceed to the next line
+#  if the command is in posix size check [ "$var" ], proceed to the next line
+#  if the command is being assigned to a variable, proceed to the next line
+#  if the command is being used in an eval, proceed to the next line
+# Anything left, print the line number
+sed -n -e 's/\("\$[^"}]*_CMD}\).*/\1/' \
+       -e T \
+       -e '/-z *"\$/b' \
+       -e '/\[ *"\$/b' \
+       -e '/= *"\$/b' \
+       -e '/eval *"\$/b' \
+       -e '{=}' \
+       /tmp/staged-sbin-firehol.in$$ > /tmp/staged-sbin-firehol.problem-lines.$$
+if [ -s /tmp/staged-sbin-firehol.problem-lines.$$ ]
+then
+  status=1
+  echo 'Detected use(s) of "${SOMETHING_CMD}" in firehol.in. Check lines:'
+  cat /tmp/staged-sbin-firehol.problem-lines.$$
+fi
+
+
 rm -f /tmp/staged-*.$$
 
 if [ $status -ne 0 ]

sbin/firehol.in

@@ -1068,7 +1068,7 @@ FIREHOL_HAVE_IPRANGE=1
 IPRANGE_WARNING=0
 if [ ! -z "${IPRANGE_CMD}" ]
 then
-	"${IPRANGE_CMD}" --has-reduce 2>/dev/null || IPRANGE_CMD=
+	${IPRANGE_CMD} --has-reduce 2>/dev/null || IPRANGE_CMD=
 fi
 
 if [ -z "${IPRANGE_CMD}" ]
@@ -5156,7 +5156,7 @@ ipset_file_to_restore_filter() {
 		local opts=
 		[ "${hash}" = "hash:net" -o "${hash}" = "nethash" ] && opts="--ipset-reduce 20 --ipset-reduce-entries 65536"
 		[ "${hash}" = "hash:ip"  -o "${hash}" = "iphash"  ] && opts="-1"
-		"${IPRANGE_CMD}" ${opts} \
+		${IPRANGE_CMD} ${opts} \
 			--print-prefix "${IPSET_ADD_OPTION} ${name} " \
 			--print-suffix " ${*}"
 	else