following the commit of removing the wrong indentation of the linux
and initrd lines - this commit strips empty lines (and leading
trailing whitespace) in /etc/kernel/cmdline.

I managed to reproduce the issue reported in the forum [0] by adding
empty lines to /etc/kernel/cmdline) - without this - systemd-boot
booted quite happily even with the indentation.

quickly tested on a VM.

[0]: https://forum.proxmox.com/threads/problem-with-proxmox-boot-tool.99043/

Signed-off-by: Stoiko Ivanov <s.iva...@proxmox.com>
---
 proxmox-boot/zz-proxmox-boot | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/proxmox-boot/zz-proxmox-boot b/proxmox-boot/zz-proxmox-boot
index 52171b2..2356c74 100755
--- a/proxmox-boot/zz-proxmox-boot
+++ b/proxmox-boot/zz-proxmox-boot
@@ -50,7 +50,7 @@ update_esps() {
            exit 0
        fi
        if [ -f /etc/kernel/cmdline ]; then
-               CMDLINE="$(cat /etc/kernel/cmdline)"
+               CMDLINE="$(sed -re '/^\s*$/d;s/^\s+(\S*)\s+$/\1/g' 
/etc/kernel/cmdline)"
        else
                warn "No /etc/kernel/cmdline found - falling back to 
/proc/cmdline"
                # remove initrd entries
-- 
2.30.2



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