smemcap: keep outputting by ignoring transient processes, take two

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

procps/smemcap.c

@@ -65,7 +65,7 @@ static void archivefile(const char *path)
 	struct stat s;
 
 	/* buffer the file */
-	fd = xopen(path, O_RDONLY);
+	fd = open(path, O_RDONLY);
 	if (fd == -1) {
 		/* skip vanished processes between dir listing and traversal */
 		return;