[dev] [sbase] simplify nohup

[anonymous]

Patch attached.

diff -r 0021d9f2b4e6 nohup.c
--- a/nohup.c   Thu Jun 23 02:08:41 2011 +0100
+++ b/nohup.c   Fri Jun 24 11:18:06 2011 +0400
@@ -13,16 +13,14 @@
 main(int argc, char *argv[])
 {
        int fd;
-       struct sigaction sa;
 
        if(getopt(argc, argv, "") != -1)
                exit(Error);
        if(optind == argc)
                enprintf(Error, "usage: %s command [argument...]\n", argv[0]);
 
-       sa.sa_handler = SIG_IGN;
-       if(sigaction(SIGHUP, &sa, NULL) == -1)
-               enprintf(Error, "sigaction HUP:");
+       if(signal(SIGHUP, SIG_IGN) == SIG_ERR)
+               enprintf(Error, "signal HUP:");
        if(isatty(STDOUT_FILENO)) {
                if((fd = open("nohup.out", O_APPEND|O_CREAT, S_IRUSR|S_IWUSR)) 
== -1)
                        enprintf(Error, "open nohup.out:");