LibCore: Use Core::Stream for ProcessStatisticsReader

Author: https://github.com/timschumi
Commit: 8940f2da7f
Pull-request: https://github.com/SerenityOS/serenity/pull/16379
Reviewed-by: https://github.com/davidot ✅

Userland/Utilities/netstat.cpp

@@ -58,11 +58,9 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
     HashMap<pid_t, DeprecatedString> programs;
 
     if (flag_program) {
-        auto processes = Core::ProcessStatisticsReader::get_all();
-        if (!processes.has_value())
-            return 1;
+        auto processes = TRY(Core::ProcessStatisticsReader::get_all());
 
-        for (auto& proc : processes.value().processes) {
+        for (auto& proc : processes.processes) {
             programs.set(proc.pid, proc.name);
         }
     }