Use clang-tidy to add curly braces around one-line statements

The command used to reformat the files in this commit was:

./util/run-clang-tidy \
	-clang-tidy-binary clang-tidy-11
	-clang-apply-replacements-binary clang-apply-replacements-11 \
	-checks=-*,readability-braces-around-statements \
	-j 9 \
	-fix \
	-format \
	-style=file \
	-quiet
clang-format -i --style=format $(git ls-files '*.c' '*.h')
uncrustify -c .uncrustify.cfg --replace --no-backup $(git ls-files '*.c' '*.h')
clang-format -i --style=format $(git ls-files '*.c' '*.h')

bin/tests/optional/fsaccess_test.c

@@ -60,8 +60,9 @@ main(void)
 	printf("fsaccess=%u\n", access);
 
 	result = isc_fsaccess_set(PATH, access);
-	if (result != ISC_R_SUCCESS)
+	if (result != ISC_R_SUCCESS) {
 		fprintf(stderr, "result = %s\n", isc_result_totext(result));
+	}
 	(void)fclose(fp);
 
 	return (0);