/proc/PID/stat mishandles whitespace #678

ProcParser::ParseProcPIDStat() mishandles whitespace characters in the comm field in multiple ways:

if (std::getline(ifs, line)) {

This reads only one line, but comm can contain newline characters.

std::vector<std::string_view> split = absl::StrSplit(line, " ", absl::SkipWhitespace());

As I understand it, with SkipWhitespace, multiple consecutive spaces will treated as if it was just one. But for command_offset, every space is counted.

if (split.size() < kProcStatNumFields) {

This doesn't take spaces into account at all.