Bug fix: If the envp argument for PR_CreateProcess is NULL, call execv (instead of execve) so that the new process inherits the environment of the parent process.
Bug fix: If the envp argument for PR_CreateProcess is NULL,
call execv (instead of execve) so that the new process inherits
the environment of the parent process.

thespooler/nspr,thespooler/nspr,thespooler/nspr,thespooler/nspr,thespooler/nspr