Warn when directory ownership differs between filesystem and package

We currently only warn if a directory's permissions differ, but using -Qkk
on my system shows that directory permissions tend to change in packages
reasonably frequently without notice.  Provide a warning in such cases
so that it can be altered.  Example output:

(1/1) reinstalling nginx
warning: directory ownership differs on /var/lib/nginx/proxy/
filesystem: 33:0  package: 0:0

Signed-off-by: Allan McRae <allan@archlinux.org>

1 files changed, 12 insertions, 6 deletions

diff --git a/src/pacman/check.c b/src/pacman/check.c
index cdd3744b..6c8889fc 100644
--- a/src/pacman/check.c
+++ b/src/pacman/check.c
@@ -106,9 +106,12 @@ static int check_file_time(const char *pkgname, const char *filepath,
 {
 	if(st->st_mtime != archive_entry_mtime(entry)) {
 		if(backup) {
-			printf("%s%s%s: ", config->colstr.title, _("backup file"), config->colstr.nocolor);
-			printf(_("%s: %s (Modification time mismatch)\n"),
-					pkgname, filepath);
+			if(!config->quiet) {
+				printf("%s%s%s: ", config->colstr.title, _("backup file"),
+						config->colstr.nocolor);
+				printf(_("%s: %s (Modification time mismatch)\n"),
+						pkgname, filepath);
+			}
 			return 0;
 		}
 		if(!config->quiet) {
@@ -150,9 +153,12 @@ static int check_file_size(const char *pkgname, const char *filepath,
 {
 	if(st->st_size != archive_entry_size(entry)) {
 		if(backup) {
-			printf("%s%s%s: ", config->colstr.title, _("backup file"), config->colstr.nocolor);
-			printf(_("%s: %s (Size mismatch)\n"),
-					pkgname, filepath);
+			if(!config->quiet) {
+				printf("%s%s%s: ", config->colstr.title, _("backup file"),
+						config->colstr.nocolor);
+				printf(_("%s: %s (Size mismatch)\n"),
+						pkgname, filepath);
+			}
 			return 0;
 		}
 		if(!config->quiet) {