Very minor algorithm fix.

src/ph.c

@@ -274,7 +274,7 @@ PH_Generate(char * const * const strings, unsigned n)
 				j = -1;
 				memset(bhsh->tbl, 0xff,
 				       bsz * sizeof(*bhsh->tbl));
-				bhsh->addend = rnd64() | 1;
+				bhsh->addend = rnd64();
 				for (unsigned k = 0; k < l; k++)
 					bhsh->k[k] = rnd64() | 1;
 				continue;