Remove superflous newlines at end of error messages

The function already adds them and having them causes trouble with
translations

Author: Flamefire

libs/s25main/GameManager.cpp

@@ -43,7 +43,7 @@ bool GameManager::Start()
     /// Videotreiber laden
     if(!videoDriver_.LoadDriver(settings_.driver.video))
     {
-        s25util::error(_("Video driver couldn't be loaded!\n"));
+        s25util::error(_("Video driver couldn't be loaded!"));
         return false;
     }
 
@@ -58,7 +58,7 @@ bool GameManager::Start()
     /// Audiodriver laden
     if(!audioDriver_.LoadDriver(settings_.driver.audio))
     {
-        s25util::warning(_("Audio driver couldn't be loaded!\n"));
+        s25util::warning(_("Audio driver couldn't be loaded!"));
         // return false;
     }
 
@@ -164,7 +164,7 @@ bool GameManager::ShowSplashscreen()
     auto image = boost::dynamic_pointer_cast<glArchivItem_Bitmap>(arSplash.release(0));
     if(!image)
     {
-        s25util::error(_("Splash screen couldn't be loaded!\n"));
+        s25util::error(_("Splash screen couldn't be loaded!"));
         return false;
     }
     windowManager_.Switch(std::make_unique<dskSplash>(std::move(image)));

libs/s25main/Settings.cpp

@@ -208,7 +208,7 @@ void Settings::Load()
         // global
         // {
         if(iniGlobal->getValue("gameversion") != rttr::version::GetRevision())
-            s25util::warning("Your application version has changed - please recheck your settings!\n");
+            s25util::warning("Your application version has changed - please recheck your settings!");
 
         global.submit_debug_data = iniGlobal->getIntValue("submit_debug_data");
         global.use_upnp = iniGlobal->getBoolValue("use_upnp");

libs/s25main/drivers/DriverWrapper.cpp

@@ -73,7 +73,7 @@ bool DriverWrapper::Load(const DriverType dt, std::string& preference)
 
     if(!dll)
     {
-        s25util::fatal_error("Could not load driver library\n");
+        s25util::fatal_error("Could not load driver library");
         return false;
     }
 

libs/s25main/drivers/VideoDriverWrapper.cpp

@@ -96,21 +96,21 @@ bool VideoDriverWrapper::CreateScreen(const VideoMode size, const bool fullscree
 {
     if(!videodriver)
     {
-        s25util::fatal_error("No video driver selected!\n");
+        s25util::fatal_error("No video driver selected!");
         return false;
     }
 
     if(!videodriver->CreateScreen(rttr::version::GetTitle(), size, fullscreen))
     {
-        s25util::fatal_error("Could not create window!\n");
+        s25util::fatal_error("Could not create window!");
         return false;
     }
 
     // DriverWrapper Initialisieren
     // Extensions laden
     if(!LoadAllExtensions())
     {
-        s25util::fatal_error("Failed to initialize the OpenGL context!\n");
+        s25util::fatal_error("Failed to initialize the OpenGL context!");
         return false;
     }
 
@@ -138,7 +138,7 @@ bool VideoDriverWrapper::ResizeScreen(const VideoMode size, const bool fullscree
 {
     if(!videodriver)
     {
-        s25util::fatal_error("No video driver selected!\n");
+        s25util::fatal_error("No video driver selected!");
         return false;
     }
 
@@ -165,7 +165,7 @@ bool VideoDriverWrapper::DestroyScreen()
 {
     if(!videodriver)
     {
-        s25util::fatal_error("No video driver selected!\n");
+        s25util::fatal_error("No video driver selected!");
         return false;
     }
 
@@ -253,7 +253,7 @@ void VideoDriverWrapper::SwapBuffers()
 {
     if(!videodriver)
     {
-        s25util::fatal_error("No video driver selected!\n");
+        s25util::fatal_error("No video driver selected!");
         return;
     }
     frameLimiter_->sleepTillNextFrame(FrameCounter::clock::now());
@@ -272,7 +272,7 @@ bool VideoDriverWrapper::Run()
 {
     if(!videodriver)
     {
-        s25util::fatal_error("No video driver selected!\n");
+        s25util::fatal_error("No video driver selected!");
         return false;
     }
 
@@ -404,7 +404,7 @@ void* VideoDriverWrapper::loadExtension(const std::string& extension)
 {
     if(!videodriver)
     {
-        s25util::fatal_error("Kein Videotreiber ausgewaehlt!\n");
+        s25util::fatal_error("No video driver selected!");
         return (nullptr);
     }