Fix common misspellings and typos

Change-Id: I4ec7accb1912c052b446be7c399bed32a8c62253
diff --git a/Transceiver52M/Transceiver.cpp b/Transceiver52M/Transceiver.cpp
index 2f4018c..9697bb3 100644
--- a/Transceiver52M/Transceiver.cpp
+++ b/Transceiver52M/Transceiver.cpp
@@ -909,7 +909,7 @@
       sprintf(response, "RSP SETFORMAT %u %u", version_recv, version_recv);
     }
   } else if (match_cmd(command, "_SETBURSTTODISKMASK", &params)) {
-    // debug command! may change or disapear without notice
+    // debug command! may change or disappear without notice
     // set a mask which bursts to dump to disk
     int mask;
     sscanf(params, "%d", &mask);