quotactl: fix Q_QUOTAON command decoding

* quota.c (SYS_FUNC(quotactl)): Print Q_QUOTAON 4th argument as a path.
diff --git a/quota.c b/quota.c
index 3255a89..8ded370 100644
--- a/quota.c
+++ b/quota.c
@@ -410,10 +410,12 @@
 		printpath(tcp, tcp->u_arg[1]);
 		tprints(", ");
 		switch (cmd) {
-			case Q_V1_QUOTAON:
 			case Q_QUOTAON:
+			case Q_V1_QUOTAON:
 				printxval(quota_formats, id, "QFMT_VFS_???");
-				break;
+				tprints(", ");
+				printpath(tcp, tcp->u_arg[3]);
+				return RVAL_DECODED;
 			case Q_SETQLIM:
 			case Q_SETQUOTA:
 			case Q_V1_SETQUOTA: