temp_runaway_stop: remove spourious space in error message

Firmware/temperature.cpp

@@ -1388,7 +1388,7 @@ void temp_runaway_stop(bool isPreheat, bool isBed)
 	{
 		lcd_setalertstatuspgm(isBed? PSTR("BED PREHEAT ERROR") : PSTR("PREHEAT ERROR"), LCD_STATUS_CRITICAL);
 		SERIAL_ERROR_START;
-		isBed ? SERIAL_ERRORLNPGM(" THERMAL RUNAWAY ( PREHEAT HEATBED)") : SERIAL_ERRORLNPGM(" THERMAL RUNAWAY ( PREHEAT HOTEND)");
+		isBed ? SERIAL_ERRORLNPGM(" THERMAL RUNAWAY (PREHEAT HEATBED)") : SERIAL_ERRORLNPGM(" THERMAL RUNAWAY (PREHEAT HOTEND)");
 
 #ifdef EXTRUDER_ALTFAN_DETECT
 		altfanStatus.altfanOverride = 1; //full speed