Source sweep: Replace std::ostringstream when used with a single append

This replaces `std::ostringstream`, when it is written to only once.
If the single written argument was numeric, `std::to_string` is used instead.
Otherwise, the single written argument is used directly instead of the
`std::ostringstream::str()` invocation.

1 files changed, 1 insertions, 3 deletions

diff --git a/Source/cmTimestamp.cxx b/Source/cmTimestamp.cxx
index 9e3222613a..a9be729e77 100644
--- a/Source/cmTimestamp.cxx
+++ b/Source/cmTimestamp.cxx
@@ -168,9 +168,7 @@ std::string cmTimestamp::AddTimestampComponent(char flag,
         return std::string();
       }
 
-      std::ostringstream ss;
-      ss << static_cast<long int>(difftime(timeT, unixEpoch));
-      return ss.str();
+      return std::to_string(static_cast<long int>(difftime(timeT, unixEpoch)));
     }
     default: {
       return formatString;