minor fix in man page;

man/sxmsg_rreply.3

@@ -3,6 +3,8 @@
 sxmsg_rreply \- Function used to send a rapid reply without confirmation
 .SH SYNOPSIS
 .B #include <sntl/sntllv2.h>
+.br
+.B #include <sntl/limits.h>
 .sp
 int sxmsg_rreply(sxmsg_t 
 .BI *msg
@@ -43,7 +45,7 @@ Not known yet.
 .nf
 .if t .ft CW
 char *buf = sxmsg_rapidbuf(msg);
-int ln = snprintf(buf, MAX_BBUFLEN, "(is-done)");
+int ln = snprintf(buf, MAX_RBBUF_LEN, "(is-done)");
 return sxmsg_rreply(msg, str, ln);
 .SH APPLICATION USAGE
 This function will be useful in RPC functions required to reply ASAP i.e. for getting some data. It RPC function takes a lot of time it's better to use other functions and postponed message processing.