changed how to handle appends(a,r,R), to use less memory when append text/file is large

qse/lib/awk/err.c

@@ -25,6 +25,7 @@ const qse_char_t* qse_awk_dflerrstr (qse_awk_t* awk, qse_awk_errnum_t errnum)
 	static const qse_char_t* errstr[] =
  	{
 		QSE_T("no error"),
+		QSE_T("internal error that should never have happened"),
 
 		QSE_T("insufficient memory"),
 		QSE_T("invalid parameter or data"),
@@ -39,7 +40,6 @@ const qse_char_t* qse_awk_dflerrstr (qse_awk_t* awk, qse_awk_errnum_t errnum)
 		QSE_T("cannot write '${0}'"),
 		QSE_T("cannot close '${0}'"),
 		
-		QSE_T("internal error that should never have happened"),
 		QSE_T("general runtime error"),
 		QSE_T("block nested too deeply"),
 		QSE_T("expression nested too deeply"),