Revert "95rootfs-block: Correctly terminate commandline parameter"

This reverts commit 4b6b46bb2aa9e6a72f96501888035f2d38b82266.

$ ./dracut.sh -l --print-cmdline
root=UUID=d5e53483-30bc-4119-8c0c-841d47a2f76brootflags=rw,noatime,compress=lzo,ssd,discard,space_cache,autodefrag,inode_cacherootfstype=btrfs

instead of:

$ ./dracut.sh -l --print-cmdline
 root=UUID=d5e53483-30bc-4119-8c0c-841d47a2f76b
rootflags=rw,noatime,compress=lzo,ssd,discard,space_cache,autodefrag,inode_cache
rootfstype=btrfs

and also

$ make testimage
…
 *** Store current command line parameters ***
Stored kernel commandline:
root=UUID=d5e53483-30bc-4119-8c0c-841d47a2f76brootflags=rw,noatime,compress=lzo,ssd,discard,space_cache,autodefrag,inode_cacherootfstype=btrfs
…