fix: make function ignore_msrs_always work

With the previous version the file was never written if it not existed before, logic bug.

quickemu

@@ -10,7 +10,7 @@ function ignore_msrs_always() {
     # Make sure the host has /etc/modprobe.d
     if [ -d /etc/modprobe.d ]; then
         # Skip if ignore_msrs is already enabled, assumes initramfs has been rebuilt
-        if grep -lq 'ignore_msrs=Y' /etc/modprobe.d/kvm-quickemu.conf >/dev/null 2>&1; then
+        if ! grep -lq 'ignore_msrs=Y' /etc/modprobe.d/kvm-quickemu.conf >/dev/null 2>&1; then
             echo "options kvm ignore_msrs=Y" | sudo tee /etc/modprobe.d/kvm-quickemu.conf
             sudo update-initramfs -k all -u
         fi