CDRIVER-3958 add trailing space after base64 JSON field (#779)

Author: jmikola

src/libbson/src/bson/bson.c

@@ -2717,7 +2717,7 @@ _bson_as_json_visit_binary (const bson_iter_t *iter,
 
    if (state->mode == BSON_JSON_MODE_CANONICAL ||
        state->mode == BSON_JSON_MODE_RELAXED) {
-      bson_string_append (state->str, "{ \"$binary\" : { \"base64\": \"");
+      bson_string_append (state->str, "{ \"$binary\" : { \"base64\" : \"");
       bson_string_append (state->str, b64);
       bson_string_append (state->str, "\", \"subType\" : \"");
       bson_string_append_printf (state->str, "%02x", v_subtype);

src/libbson/tests/test-bson.c

@@ -2471,7 +2471,7 @@ test_bson_as_json_string (void)
    const char *expected =
       "{ \"double\" : { \"$numberDouble\" : \"1.0\" }, \"string\" : "
       "\"string_example\", \"document\" : { \"x\" : \"y\" }, \"document\" : [ "
-      "\"x\" ], \"binary\" : { \"$binary\" : { \"base64\": \"ZGF0YQ==\", "
+      "\"x\" ], \"binary\" : { \"$binary\" : { \"base64\" : \"ZGF0YQ==\", "
       "\"subType\" : \"00\" } }, \"undefined\" : { \"$undefined\" : true }, "
       "\"oid\" : { \"$oid\" : \"000000000000000000000000\" }, \"bool\" : true, "
       "\"datetime\" : { \"$date\" : { \"$numberLong\" : \"123\" } }, \"null\" "

src/libbson/tests/test-json.c

@@ -2976,12 +2976,12 @@ test_bson_as_json_with_opts_binary (void)
 
    run_bson_as_json_with_opts_tests (b,
 			   BSON_JSON_MODE_CANONICAL,
-			   "{ \"v\" : { \"$binary\" : { \"base64\": "
+			   "{ \"v\" : { \"$binary\" : { \"base64\" : "
 			   "\"AQIDBA==\", \"subType\" : \"00\" } } }");
 
    run_bson_as_json_with_opts_tests (b,
 			   BSON_JSON_MODE_RELAXED,
-			   "{ \"v\" : { \"$binary\" : { \"base64\": "
+			   "{ \"v\" : { \"$binary\" : { \"base64\" : "
 			   "\"AQIDBA==\", \"subType\" : \"00\" } } }");
 
    bson_destroy (b);