[BIP-119] Complete fragmented sentence

Co-authored-by: flack <[email protected]>

Author: JeremyRubin

bip-0119.mediawiki

@@ -171,7 +171,9 @@ Where
 
     bool CheckDefaultCheckTemplateVerifyHash(const std::vector<unsigned char>& hash) {
         // note: for anti-DoS, a real implementation *must* cache parts of this computation
-        // to avoid quadratic hashing DoS, including 
+        // to avoid quadratic hashing DoS all variable length computations must be precomputed
+        // including hashes of the scriptsigs, sequences, and outputs. See the section
+        // "Denial of Service and Validation Costs" below.
         return GetDefaultCheckTemplateVerifyHash(current_tx, current_input_index) == uint256(hash);
     }