Allow doloadinfo() to return more than the stock 2K of info.

At least for TCP based calls. We will need this for long-ish delta chains.
I didn't think this warranted a version number bump even though it is
possible that an old MFS that makes a UDP-based call will only wind up
getting the first line (image). The reasoning here is that MFSes that old
could only handle one line anyway in rc.frisbee!

tmcd/tmcd.c

@@ -6136,6 +6136,12 @@ COMMAND_PROTOTYPE(doloadinfo)
 		/* Tack on the newline, finally */
 		bufp += OUTPUT(bufp, ebufp - bufp, "\n");
 
+		/* Output line at a time in case we have a lot of images */
+		if (nrows > 1) {
+			client_writeback(sock, buf, strlen(buf), tcp);
+			bufp = buf;
+		}
+
 		nrows--;
 	}
 	if (res)
@@ -6160,6 +6166,7 @@ COMMAND_PROTOTYPE(doloadinfo)
 	if (disableif)
 		free(disableif);
 
+	/* Output the final (or only, or null) line */
 	client_writeback(sock, buf, strlen(buf), tcp);
 	if (verbose)
 		info("doloadinfo: %s", buf);