Change applet to application.

lib/error.c

@@ -46,7 +46,7 @@ static const err_t errors[] = {
   ERR (YKPIV_MEMORY_ERROR, "Error allocating memory"),
   ERR (YKPIV_PCSC_ERROR, "Error in PCSC call"),
   ERR (YKPIV_SIZE_ERROR, "Wrong buffer size"),
-  ERR (YKPIV_APPLET_ERROR, "No PIV applet found"),
+  ERR (YKPIV_APPLET_ERROR, "No PIV application found"),
   ERR (YKPIV_AUTHENTICATION_ERROR, "Error during authentication"),
   ERR (YKPIV_RANDOMNESS_ERROR, "Error getting randomness"),
   ERR (YKPIV_GENERIC_ERROR, "Something went wrong."),

lib/ykpiv.c

@@ -184,7 +184,7 @@ ykpiv_rc ykpiv_connect(ykpiv_state *state, const char *wanted) {
         return YKPIV_OK;
       } else {
         if(state->verbose) {
-          fprintf(stderr, "Failed selecting applet: %04x\n", sw);
+          fprintf(stderr, "Failed selecting application: %04x\n", sw);
         }
       }
     }