Flush buffer after adding a string, not before.

--HG--
branch : develop

src/app/tape/mapplication.cpp

@@ -159,6 +159,9 @@ inline void noisyFailureMsgHandler(QtMsgType type, const QMessageLogContext &con
             break;
     }
 
+    vStdOut().flush();
+    vStdErr().flush();
+
     if (isGuiThread)
     {
         //fixme: trying to make sure there are no save/load dialogs are opened, because error message during them will

src/app/valentina/core/vapplication.cpp

@@ -170,6 +170,8 @@ inline void noisyFailureMsgHandler(QtMsgType type, const QMessageLogContext &con
             default:
                 break;
         }
+        vStdOut().flush();
+        vStdErr().flush();
 
         (*qApp->LogFile()) << debugdate <<  endl;
     }

src/libs/vmisc/vsysexits.h

@@ -82,18 +82,16 @@ static const auto V_UNUSED V_EX_CONFIG = 78;      /*Something was found in an un
 //---------------------------------------------------------------------------------------------------------------------
 inline QTextStream& vStdErr()
 {
-    static QTextStream ts( stderr );
+    static QTextStream ts(stderr, QIODevice::Unbuffered | QIODevice::WriteOnly);
     ts.setCodec("UTF-8");
-    ts.flush();
     return ts;
 }
 
 //---------------------------------------------------------------------------------------------------------------------
 inline QTextStream& vStdOut()
 {
-    static QTextStream ts( stdout );
+    static QTextStream ts(stdout, QIODevice::Unbuffered | QIODevice::WriteOnly);
     ts.setCodec("UTF-8");
-    ts.flush();
     return ts;
 }