Use switch for fork()

This saves us one local variable and 2 lines of code, while improving
readability by using the switch-style we are used to from other suckless
projects.

We are allowed to check against -1, as POSIX clearly mandates for the
RETURN VALUE:

"Upon successful completion, fork() shall return 0 to the child process
and shall return the process ID of the child process to the parent
process. Both processes shall continue to execute from the fork()
function. Otherwise, -1 shall be returned to the parent process, no
child process shall be created, and errno shall be set to indicate the
error."
[http://pubs.opengroup.org/onlinepubs/9699919799/functions/fork.html]

This way, checking against < 0 was overdoing it and it's sufficient to
compare against -1, justifying the switch statement here.

0 files changed, 0 insertions, 0 deletions