Keep the trailing period in commentary.
diff --git a/double-conversion/double-conversion.cc b/double-conversion/double-conversion.cc
index 720cda1..f372219 100644
--- a/double-conversion/double-conversion.cc
+++ b/double-conversion/double-conversion.cc
@@ -118,7 +118,7 @@
StringBuilder* result_builder) const {
// Create a representation that is padded with zeros if needed.
if (decimal_point <= 0) {
- // "0.00000decimal_rep" or "0.000decimal_rep00"
+ // "0.00000decimal_rep" or "0.000decimal_rep00".
result_builder->AddCharacter('0');
if (digits_after_point > 0) {
result_builder->AddCharacter('.');