Fix Travis GCC warning: zero-length gnu_printf format string [-Wforma…

…t-zero-length]

(based on cmangos/mangos-wotlk@3cfee4f23)

Signed-off-by: Xfurry <xfurry.cmangos@outlook.com>

src/game/AI/ScriptDevAI/ScriptDevAIMgr.cpp

@@ -463,7 +463,7 @@ void ScriptDevAIMgr::Initialize()
     outstring_log("SD2: Loading C++ scripts");
     BarGoLink bar(1);
     bar.step();
-    outstring_log("");
+    outstring_log();
 
     // Resize script ids to needed amount of assigned ScriptNames (from core)
     m_scripts.resize(GetScriptIdsCount(), nullptr);
@@ -481,7 +481,7 @@ void ScriptDevAIMgr::Initialize()
 
     outstring_log(">> Loaded %i C++ Scripts.", num_sc_scripts);
 #else
-    outstring_log("");
+    outstring_log();
     outstring_log(">> ScriptDev is disabled!");
 #endif
 }

src/game/AI/ScriptDevAI/system/system.cpp

@@ -42,7 +42,7 @@ void SystemMgr::LoadVersion()
         strSD2Version.append("ScriptDev2 ");
 
     outstring_log("Loading %s", strSD2Version.c_str());
-    outstring_log("");
+    outstring_log();
 }
 
 void SystemMgr::LoadScriptTexts()
@@ -111,14 +111,14 @@ void SystemMgr::LoadScriptWaypoints()
 
         delete pResult;
 
-        outstring_log("");
+        outstring_log();
         outstring_log(">> Loaded %u Script Waypoint nodes.", uiNodeCount);
     }
     else
     {
         BarGoLink bar(1);
         bar.step();
-        outstring_log("");
+        outstring_log();
         outstring_log(">> Loaded 0 Script Waypoints. DB table `script_waypoint` is empty.");
     }
 }

src/shared/Log.cpp

@@ -986,6 +986,11 @@ void Log::setScriptLibraryErrorFile(char const* fname, char const* libName)
     scriptErrLogFile = fopen(fileName.c_str(), "a");
 }
 
+void outstring_log()
+{
+    sLog.outString();
+}
+
 void outstring_log(const char* str, ...)
 {
     if (!str)

src/shared/Log.h

@@ -269,6 +269,7 @@ class Log : public MaNGOS::Singleton<Log, MaNGOS::ClassLevelLockable<Log, std::m
     ERROR_DB_FILTER_LOG(LOG_FILTER_DB_STRICTED_CHECK, __VA_ARGS__)
 
 // primary for script library
+void outstring_log();
 void outstring_log(const char* str, ...) ATTR_PRINTF(1, 2);
 void detail_log(const char* str, ...) ATTR_PRINTF(1, 2);
 void debug_log(const char* str, ...) ATTR_PRINTF(1, 2);