Hashtable: code formatting

Co-authored-by: BenBE <BenBE@geshi.org>

Author: charlievieth

Hashtable.c

@@ -258,6 +258,7 @@ void Hashtable_setSize(Hashtable* this, size_t size) {
    size_t newSize = nextPrime(size);
    if (newSize == this->size)
       return;
+
    assert(newSize > this->items);
 
    HashtableItem* oldBuckets = this->buckets;