Everywhere: Fix more typos

Author: https://github.com/linusg
Commit: bcfc6f0c57
Pull-request: https://github.com/SerenityOS/serenity/pull/3668
Reviewed-by: https://github.com/bugaevc
Reviewed-by: https://github.com/xTibor

Demos/DynamicLink/LinkDemo/main.cpp

@@ -89,7 +89,7 @@ int main(int argc, char** argv, char** envp)
 
     printf("I think I called my lib function!\n");
 
-    // Test getting a method that takes and returns arugments now
+    // Test getting a method that takes and returns arguments now
     const char* (*other_func)(int) = (const char* (*)(int))dlsym(handle, "other_lib_function");
 
     printf("Found other lib function address %p\n", other_func);