*: introduce and use xfork()

function                                             old     new   delta
xfork                                                  -      20     +20
msh_main                                            1377    1380      +3
mod_process                                          455     446      -9
forkexit_or_rexec                                     30      17     -13
expand_variables                                    1434    1421     -13
open_transformer                                      91      76     -15
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/4 up/down: 23/-50)            Total: -27 bytes

1 files changed, 1 insertions, 3 deletions

diff --git a/libbb/vfork_daemon_rexec.c b/libbb/vfork_daemon_rexec.c
index 9baa813a1..989e9b841 100644
--- a/libbb/vfork_daemon_rexec.c
+++ b/libbb/vfork_daemon_rexec.c
@@ -238,9 +238,7 @@ void FAST_FUNC forkexit_or_rexec(char **argv)
 void FAST_FUNC forkexit_or_rexec(void)
 {
         pid_t pid;
-        pid = fork();
-        if (pid < 0) /* wtf? */
-                bb_perror_msg_and_die("fork");
+        pid = xfork();
         if (pid) /* parent */
                 exit(EXIT_SUCCESS);
         /* child */