shithub: 9pro

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add a trace

--- a/9pex.c

+++ b/9pex.c

@@ -263,6 +263,8 @@

 		f->name = f->path;

 	else

 		f->name++;

+	if (f->name[0] == 0)

+		fprintf(stderr, "%s -> empty file name\n", f->path);

 	for (i = 0; i < numfids; i++) {

 		if (fids[i] == NULL) {