X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Fmemcasecmp.c;h=a2e42e8ecfa60134713464cf0fa6f1781cf0b901;hb=2c6d91f6bcfffcaa7320af7ea4e2a9c970c0966e;hp=2a255f19d802ae8eb25069c6348e1766449d566f;hpb=82d6305b7d55db6aafdfab016fc9182129a5e447;p=gnulib.git

diff --git a/lib/memcasecmp.c b/lib/memcasecmp.c
index 2a255f19d..a2e42e8ec 100644
--- a/lib/memcasecmp.c
+++ b/lib/memcasecmp.c
@@ -39,7 +39,9 @@
 
 #include "memcasecmp.h"
 
-/* Like memcmp, but ignore differences in case.  */
+/* Like memcmp, but ignore differences in case.
+   Convert to upper case (not lower) before comparing so that
+   join -i works with sort -f.  */
 
 int
 memcasecmp (vs1, vs2, n)