Make some more fixes

This change deletes mkfifo() so that GNU Make on Windows will work in
parallel mode using its pipe-based implementation. There's an example
called greenbean2 now, which shows how to build a scalable web server
for Windows with 10k+ threads. The accuracy of clock_nanosleep is now
significantly improved on Linux.

libc/runtime/winmain.greg.c

@@ -136,6 +136,7 @@ static abi wontreturn void WinInit(const char16_t *cmdline) {
           m |= kNtEnableMouseInput | kNtEnableWindowInput |
                kNtEnableProcessedInput;
         } else {
+          m &= ~kNtDisableNewlineAutoReturn;
           m |= kNtEnableProcessedOutput | kNtEnableVirtualTerminalProcessing;
         }
         __imp_SetConsoleMode(h, m);