fix example

example_tree.tft

@@ -9,7 +9,7 @@ b: -5509.9.06
 s: Adam              # Eve's spouse is Adam
 
 Cain, M              # Cain's birthday is unknown
-p: Adam, Eve,steve         # Cain's parents are Adam and Eve
+p: Adam, Eve         # Cain's parents are Adam and Eve
 
 Abel, M
 p: -                 # Abel's parents are the same as the last person's (Cain)

src/parser.cpp

@@ -56,6 +56,7 @@ namespace /* internal */
 		endwin();
 		cerr << "Line " << line << ": two parents are already defined, "
 			 << extra_name << " is third\n";
+		cerr.flush();
 		exit(1);
 	}