feat(fstypes): scrape lsvfs output on generic (~non-Linux) case

Author: scop

bash_completion

@@ -1502,6 +1502,7 @@ _fstypes()
              $(awk '/^[ \t]*[^#]/ { print $3 }' /etc/mnttab 2>/dev/null)
              $(awk '/^[ \t]*[^#]/ { print $4 }' /etc/vfstab 2>/dev/null)
              $(awk '{ print $1 }' /etc/dfs/fstypes 2>/dev/null)
+             $(lsvfs 2>/dev/null | awk '$1 !~ /^(Filesystem|[^a-zA-Z])/ { print $1 }')
              $([[ -d /etc/fs ]] && command ls /etc/fs)"
     fi