[type/__uci] Unquote UCI reported values

Without unquoting values printed in single quotes by UCI would always lead to
the state explorer reporting "different".

cdist/conf/type/__uci/explorer/state

@@ -51,21 +51,34 @@ fi
 # strip off trailing newline
 printf '%s' "${values_is}" \
 | awk '
+function unquote(s) {
+	# simplified dequoting of single quoted strings
+	if (s ~ /^'\''.*'\''$/) {
+		s = substr(s, 2, length(s) - 2)
+		sub(/'"'\\\\''"'/, "'\''", s)
+	}
+	return s
+}
+
 BEGIN {
 	state = "present"  # assume all is fine
 }
 NR == FNR {
 	# memoize "should" state
 	should[FNR] = $0
+	should_count++
 
 	# go to next line (important!)
 	next
 }
 
 # compare "is" state
+
+{ $0 = unquote($0) }
+
 $0 == should[FNR] { next }
 
-FNR > length(should) {
+FNR > should_count {
 	# there are more "is" records than "should" -> definitely different
 	state = "different"
 	exit
@@ -87,7 +100,7 @@ FNR > length(should) {
 }
 
 END {
-	if (FNR < length(should)) {
+	if (FNR < should_count) {
 		# "is" was shorter than "should" -> different
 		state = "different"
 	}