I've verified that /etc/mtab correctly encodes a mount option that contains spaces, but it seems that /proc/mounts does not. /proc/mounts does encode a mount point or device with spaces so it would seem logical the same encoding could be used for mount options.
I've verified that /etc/mtab correctly encodes a mount option that contains spaces, but it seems that /proc/mounts does not. /proc/mounts does encode a mount point or device with spaces so it would seem logical the same encoding could be used for mount options.