parse-srtm-pcrs generates invalid json

[gaetan-sbt]

Strings aren't escaped when generating the json, so I'm getting an invalid json when serializing:

grub_cmd: menuentry Ubuntu --class ubuntu --class gnu-linux --class gnu --class os --id gnulinux-simple-43079483-19f2-4c67-b58f-025306f149f4 { recordfail load_video gfxmode $linux_gfx_mode insmod gzio if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi insmod part_gpt insmod ext2 search --no-floppy --fs-uuid --set=root 178d3047-3112-4702-9ffb-cdeb5960493e if [ "${initrdfail}" = 1 ]; then echo 'GRUB_FORCE_PARTUUID set, initrdless boot failed. Attempting with initrd.' linux /vmlinuz-6.8.0-1014-gcp root=PARTUUID=b863f10f-3529-49f7-87fb-8e70a52c514a ro console=ttyS0,115200 initrd /initrd.img-6.8.0-1014-gcp else echo 'GRUB_FORCE_PARTUUID set, attempting initrdless boot.' linux /vmlinuz-6.8.0-1014-gcp root=PARTUUID=b863f10f-3529-49f7-87fb-8e70a52c514a ro console=ttyS0,115200 panic=-1 fi initrdfail}

I am getting this which is invalid JSON:

"description":"grub_cmd: menuentry Ubuntu --class ubuntu --class gnu-linux --class gnu --class os --id gnulinux-simple-43079483-19f2-4c67-b58f-025306f149f4 { recordfail load_video gfxmode $linux_gfx_mode insmod gzio if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi insmod part_gpt insmod ext2 search --no-floppy --fs-uuid --set=root 178d3047-3112-4702-9ffb-cdeb5960493e if [ "${initrdfail}" = 1 ]; then echo 'GRUB_FORCE_PARTUUID set, initrdless boot failed. Attempting with initrd.' linux /vmlinuz-6.8.0-1014-gcp root=PARTUUID=b863f10f-3529-49f7-87fb-8e70a52c514a ro console=ttyS0,115200 initrd /initrd.img-6.8.0-1014-gcp else echo 'GRUB_FORCE_PARTUUID set, attempting initrdless boot.' linux /vmlinuz-6.8.0-1014-gcp root=PARTUUID=b863f10f-3529-49f7-87fb-8e70a52c514a ro console=ttyS0,115200 panic=-1 fi initrdfail}"