Support question text.dat strings that begin with a "\1?" (conditional

blank line) sequence.

exec/noyesbar.src

@@ -17,6 +17,11 @@ if_true
 	crlf
 	shift_str _question 2
 	end_if
+compare_strn 2 _question "\1?"
+if_true
+	print "\1?"
+	shift_str _question 2
+	end_if
 printf "
n
b
h[
c
b] 
y%s? " _question
 :top
 compare_str "N"

exec/yesnobar.src

@@ -17,6 +17,11 @@ if_true
 	crlf
 	shift_str _question 2
 	end_if
+compare_strn 2 _question "\1?"
+if_true
+	print "\1?"
+	shift_str _question 2
+	end_if
 printf "
n
b
h[
c
b] 
y%s? " _question
 :top
 compare_str "Y"