GPU: Rename index to gpu_num

neofetch

@@ -969,7 +969,7 @@ get_gpu() {
             gpus=($(lspci -mm | awk -F '\\"|\\" \\"' '/"Display|"3D|"VGA/ {print $3 " " $4}'))
 
             # Number the GPUs if more than one exists.
-            [[ "${#gpus[@]}" > 1 ]] && index=0
+            [[ "${#gpus[@]}" > 1 ]] && gpu_num=0
 
             for gpu in "${gpus[@]}"; do
                 case "$gpu" in
@@ -1005,8 +1005,8 @@ get_gpu() {
                     gpu="${gpu/Intel }"
                 fi
 
-                prin "GPU${index}" "$gpu"
-                index="$((index+=1))"
+                prin "GPU${gpu_num}" "$gpu"
+                gpu_num="$((gpu_num+=1))"
             done
 
             return