iOS: fix app id in path, pen pressure filtering on Line

src/util.h

@@ -74,6 +74,7 @@ std::string unescape(const std::string& s);
 std::wstring str2wstr(const std::string& str);
 std::string wstr2str(const std::wstring& wstr);
 bool str_iequals(const std::string& a, const std::string& b);
+std::string str_replace(const std::string& string, const std::string& search, const std::string& replace);
 
 size_t curl_data_handler(void *contents, size_t size, size_t nmemb, void *userp);
 size_t curl_data_write(void *ptr, size_t size, size_t nmemb, FILE *stream);
@@ -181,7 +182,7 @@ public:
             post_cv.wait(lock, [&]() { return unlocked | (q.size() < Max); });
             if (q.size() >= Max) return;
         }
-        if (std::find(q.begin(), q.end(), pkt) == q.end());
+        if (std::find(q.begin(), q.end(), pkt) == q.end())
             top ? q.push_front(pkt) : q.push_back(pkt);
         get_cv.notify_one();
     }