formatting cleanup src/*.c

Remove trailing spaces, and remove tabs from the files that had
trailing spaces.

Also, rndorcname() was using a random value to terminate a loop
and was recalculating a new one each iteration.

src/version.c

@@ -57,7 +57,7 @@ char *buf;
 
         Sprintf(eos(buf), " (");
 #if defined(RUNTIME_PORT_ID)
-        tmp = get_port_id(tmpbuf);        
+        tmp = get_port_id(tmpbuf);
         if (tmp)
             Sprintf(eos(buf), "%s%s", c++ ? "," : "", tmp);
 #endif