Meta+Userland: Make clang-format-10 clean

Author: https://github.com/BenWiederhake
Commit: a2feef17bf
Pull-request: https://github.com/SerenityOS/serenity/pull/3541
Reviewed-by: https://github.com/alimpfard
Reviewed-by: https://github.com/linusg

Userland/reboot.cpp

@@ -27,15 +27,11 @@
 #include <stdio.h>
 #include <unistd.h>
 
-
 int main(int, char**)
 {
-    if (reboot() < 0){
+    if (reboot() < 0) {
         perror("reboot");
         return 1;
     }
     return 0;
 }
-
-
-