Attempt to clean up memory (and processes better)

zig/sdl/hello_sdl.zig

@@ -153,9 +153,12 @@ const ProcessWithOutput = struct {
        }
    }
    fn deinit(self: *ProcessWithOutput) void {
    fn deinit(self: *ProcessWithOutput) !void {
        self.stdout_buf.deinit();
        self.stderr_buf.deinit();
        if (self.is_running()) {
            _ = try self.process.kill();
        }
        self.process.deinit();
    }
};
@@ -189,7 +192,7 @@ const Runner = struct {
                        return err;
                    },
                };
                process.deinit();
                try process.deinit();
            }
        }
@@ -222,9 +225,9 @@ const Runner = struct {
        return "<no output>";
    }
    fn deinit(self: *Runner) void {
    fn deinit(self: *Runner) !void {
        if (self.process) |*process| {
            process.deinit();
            try process.deinit();
        }
    }
};
@@ -832,7 +835,7 @@ pub fn main() !void {
    // clean up memory and processes
    for (commands) |*command| {
        command.deinit();
        try command.deinit();
    }
}