Fix double slashes in full path for non-chroot usecase
Fix double slashes in full path for non-chroot usecase

When pasting server root dir with cwd, in the non-chrooting usecase,
double slashes could happen.  This patch fixes that ugliness.

Signed-off-by: Joachim Nilsson <583c295fd7602c168ad814279bbc3894ba65f5d6@gmail.com>

troglobit/uftpd,troglobit/uftpd