Actually use the cloned pathname in ltelf_read_library
diff --git a/ltrace-elf.c b/ltrace-elf.c
index b9dc042..5628093 100644
--- a/ltrace-elf.c
+++ b/ltrace-elf.c
@@ -663,7 +663,7 @@
 		char *pathname = strdup(filename);
 		if (pathname == NULL)
 			goto fail;
-		library_set_pathname(lib, filename, 1);
+		library_set_pathname(lib, pathname, 1);
 	}
 
 	if (lte.soname != NULL) {