Update syscall_filesize.c for file neatness

userprog/syscall_filesize.c

@@ -2,10 +2,12 @@
 #include "filesys/file.h"
 
 int syscall_filesize(struct intr_frame *file_descriptor) {
-	struct file_map *file_map = get_file(file_descriptor); // Described in system_calls.h, stores file descriptors mapped to files
+    // Described in system_calls.h, stores file descriptors mapped to files
+	struct file_map *file_map = get_file(file_descriptor); 
 	int size;
 	if (file_map == NULL) // Checking if file is empty or non-existent
-		return -1;
-	size = file_length(file_map->file); // Using the file_length function in file.h to get the length and store it
+		return -1; // Returning failure state
+	// Using the file_length function in file.h to get the length and store it
+	size = file_length(file_map->file); 
 	return size;
 }
\ No newline at end of file