Add debugging comment about read_buf_().

diff --git a/io.c b/io.c
index 8ee48f9354df78c7a7da87a14f766da8cf2ae26c..cf94cee73f0bfe22f80bdf4eea6c743aae6c6b15 100644 (file)
--- a/io.c
+++ b/io.c
@@ -1843,6 +1843,7 @@ int64 read_longint(int f)
 #endif
 }
 
+/* Debugging note: this will be named read_buf_() when using an external zlib. */
 void read_buf(int f, char *buf, size_t len)
 {
        if (f != iobuf.in_fd) {