Function TrimSpace

src/leveldb/benchmarks/db_bench.cc:152–162

#if defined(__linux)
static Slice TrimSpace(Slice s) {
  size_t start = 0;
  while (start < s.size() && isspace(s[start])) {
    start++;
  }
  size_t limit = s.size();
  while (limit > start && isspace(s[limit - 1])) {
    limit--;
  }
  return Slice(s.data() + start, limit - start);
}
#endif

static void AppendWithSpace(std::string* str, Slice msg) {