fix: make function ignore_msrs_always work

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

Make the code simpler to read by preventing unnessesary "else" clause nesting

quickemu

@@ -8,16 +8,16 @@ fi
 
 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
-            echo "options kvm ignore_msrs=Y" | sudo tee /etc/modprobe.d/kvm-quickemu.conf
-            sudo update-initramfs -k all -u
-        fi
-    else
+    if [ ! -d /etc/modprobe.d ]; then
         echo "ERROR! /etc/modprobe.d was not found, I don't know how to configure this system."
         exit 1
     fi
+
+    # Skip if ignore_msrs is already enabled, assumes initramfs has been rebuilt
+    grep -lq 'ignore_msrs=Y' /etc/modprobe.d/kvm-quickemu.conf >/dev/null 2>&1 && return
+
+    echo "options kvm ignore_msrs=Y" | sudo tee /etc/modprobe.d/kvm-quickemu.conf
+    sudo update-initramfs -k all -u
 }
 
 function ignore_msrs_alert() {