Log file update

* Write UTF-8 to log file
  * Remove redundant code
    - open log file in main.cxx
    - also in function create_fl_digi_main_primary()

src/dialogs/fl_digi.cxx

@@ -6449,7 +6449,6 @@ void put_echo_char(unsigned int data, int style)
 	if (asc == ascii2 && iscntrl(data))
 		style = FTextBase::CTRL;
 
-#if FLDIGI_FLTK_API_MAJOR == 1 && FLDIGI_FLTK_API_MINOR == 3
 	sch.clear();
 	if (asc != NULL) { // MAIL / ARQ / RTTY / CW
 		sch.assign(asc[data & 0xFF]);
@@ -6461,6 +6460,7 @@ void put_echo_char(unsigned int data, int style)
 		sch.assign(" ");
 		sch[0] = data;
 	}
+#if FLDIGI_FLTK_API_MAJOR == 1 && FLDIGI_FLTK_API_MINOR == 3
 	REQ(&FTextRX::addstr, ReceiveText, sch, style);
 #else
 	REQ(&FTextBase::addchr, ReceiveText, data, style);
@@ -6471,7 +6471,7 @@ void put_echo_char(unsigned int data, int style)
 		Maillogfile->log_to_file(cLogfile::LOG_TX, s);
 
 	if (progStatus.LOGenabled)
-		logfile->log_to_file(cLogfile::LOG_TX, s);
+		logfile->log_to_file(cLogfile::LOG_TX, sch);
 }
 
 void resetRTTY() {

src/main.cxx

@@ -413,16 +413,6 @@ int main(int argc, char ** argv)
 	if (progdefaults.XmlRigFilename.empty())
 		progdefaults.XmlRigFilename = xmlfname;
 
-	if (progStatus.LOGenabled == true) {
-    	Date tdy;
-	    string lfname = HomeDir;
-	    lfname.append("fldigi");
-	    lfname.append(tdy.szDate(2));
-	    lfname.append(".log");
-	    logfile = new cLogfile(lfname);
-	    logfile->log_to_file_start();
-	}
-
 #if BENCHMARK_MODE
 	return setup_benchmark();
 #endif

src/misc/log.cxx

@@ -82,7 +82,7 @@ void cLogfile::log_to_file(log_t type, const string& s)
 			fprintf(logfile, "%s %s : %s (%s): ", lognames[type], freq, logmode, timestr);
 		}
 		for (size_t i = 0; i < s.length(); i++)
-			if (s[i] == '\n' || s[i] >= ' ') fprintf(logfile, "%c", s[i]);
+			if (s[i] == '\n' || (unsigned char)s[i] >= ' ') fprintf(logfile, "%c", s[i]);
 		retflag = *s.rbegin() == '\n';
 		if (!retflag)
 			fflush(logfile);