stand: Use c99 structure initialization for pkgfs_fsops

Sponsored by:		Netflix

stand/libsa/pkgfs.c

@@ -49,14 +49,14 @@ static int   pkg_readdir(struct open_file *, struct dirent *);
 static off_t pkg_atol(const char *, unsigned);
 
 struct fs_ops pkgfs_fsops = {
-	"pkg",
-	pkg_open, 
-	pkg_close, 
-	pkg_read,
-	null_write,
-	pkg_seek,
-	pkg_stat,
-	pkg_readdir
+	.fs_name = "pkg",
+	.fo_open = pkg_open,
+	.fo_close = pkg_close,
+	.fo_read = pkg_read,
+	.fo_write = null_write,
+	.fo_seek = pkg_seek,
+	.fo_stat = pkg_stat,
+	.fo_readdir = pkg_readdir,
 };
 
 #define PKG_BUFSIZE	512