message: [boost] split Build-Depends on multipls lines
diff: @@ -44,6 +44,11 @@ namespace vcpkg::Parse
  return nullptr;
  }
  + static bool is_whitespace(char c)
  + {
  + return c == ' ' || c == '\t' || c == '\n' || c == '\r';
  + }
  +
  std::vector<std::string> parse_comma_list(const std::string& str)
  {
  if (str.empty())
  @@ -66,7 +71,7 @@ namespace vcpkg::Parse
  // skip comma and space
  ++pos;
  - while (str[pos] == ' ')
  + while (is_whitespace(str[pos]))
  {
  ++pos;
  }
  