make fuzzy search a bit less fuzzy (#13996) [backport:1.2]

tools/dochack/dochack.nim

@@ -303,7 +303,7 @@ proc dosearch(value: cstring): Element =
       matches.add((db[i], score))
 
   matches.sort(proc(a, b: auto): int = b[1] - a[1])
-  for i in 0 ..< min(matches.len, 19):
+  for i in 0 ..< min(matches.len, 29):
     matches[i][0].innerHTML = matches[i][0].getAttribute("data-doc-search-tag")
     ul.add(tree("LI", cast[Element](matches[i][0])))
   if ul.len == 0:

tools/dochack/fuzzysearch.nim

@@ -132,6 +132,9 @@ proc fuzzyMatch*(pattern, str: cstring) : tuple[score: int, matched: bool] =
 
     strIndex += 1
 
+  if patIndex == pattern.len and (strIndex == str.len or str[strIndex] notin Letters):
+    score += 10
+
   result = (
     score:   max(0, score),
     matched: (score > 0),