Don't ignore "permission denied" errors when enabling chroot

Up to now, ngIRCd silently ignored permission denied errors when trying
to enable a chroot setup: only the "not running chrooted" message became
logged later on.

This patch lets ngIRCd exit with a fatal error when the chroot can't
be enabled on startup -- this is the much safer bevahiour!

src/ngircd/ngircd.c

@@ -642,12 +642,10 @@ NGIRCd_Init(bool NGIRCd_NoDaemon)
 		}
 
 		if (chroot(Conf_Chroot) != 0) {
-			if (errno != EPERM) {
 			Log(LOG_ERR,
 			    "Can't change root directory to \"%s\": %s",
 			    Conf_Chroot, strerror(errno));
 			goto out;
-			}
 		} else {
 			chrooted = true;
 			Log(LOG_INFO,