[TRIVIAL] Fix typo: exactmath -> exactmatch

... but not yet in trivial tree

src/httpserver.cpp

@@ -578,7 +578,7 @@ HTTPRequest::RequestMethod HTTPRequest::GetRequestMethod()
 
 void RegisterHTTPHandler(const std::string &prefix, bool exactMatch, const HTTPRequestHandler &handler)
 {
-    LogPrint("http", "Registering HTTP handler for %s (exactmath %d)\n", prefix, exactMatch);
+    LogPrint("http", "Registering HTTP handler for %s (exactmatch %d)\n", prefix, exactMatch);
     pathHandlers.push_back(HTTPPathHandler(prefix, exactMatch, handler));
 }
 
@@ -591,7 +591,7 @@ void UnregisterHTTPHandler(const std::string &prefix, bool exactMatch)
             break;
     if (i != iend)
     {
-        LogPrint("http", "Unregistering HTTP handler for %s (exactmath %d)\n", prefix, exactMatch);
+        LogPrint("http", "Unregistering HTTP handler for %s (exactmatch %d)\n", prefix, exactMatch);
         pathHandlers.erase(i);
     }
 }