Audit bb_common_bufsiz usage, add script which looks for misuse.
tr: stop using globals needlessly.
code: -103 bytes

diff --git a/debianutils/readlink.c b/debianutils/readlink.c
index b6b4965..d454cbf 100644
--- a/debianutils/readlink.c
+++ b/debianutils/readlink.c
@@ -43,7 +43,7 @@
 		return EXIT_FAILURE;
 	puts(buf);
 
-	if (ENABLE_FEATURE_CLEAN_UP && buf != bb_common_bufsiz1)
+	if (ENABLE_FEATURE_CLEAN_UP && !opt)
 		free(buf);
 
 	fflush_stdout_and_exit(EXIT_SUCCESS);