From 192a808e0fea49adfe3487c43894a9be6112d346 Mon Sep 17 00:00:00 2001
From: Matthias Beyer <mail@beyermatthias.de>
Date: Wed, 16 Nov 2016 20:41:26 +0100
Subject: [PATCH] Use try!() instead of ? operator, for older compilers (#752)

---
 src/app/help.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/app/help.rs b/src/app/help.rs
index 3270f0ccfae..83a6dfce263 100644
--- a/src/app/help.rs
+++ b/src/app/help.rs
@@ -167,7 +167,7 @@ impl<'a> Help<'a> {
     pub fn write_help(&mut self, parser: &Parser) -> ClapResult<()> {
         debugln!("fn=Help::write_help;");
         if let Some(h) = parser.meta.help_str {
-            write!(self.writer, "{}", h).map_err(Error::from)?;
+            try!(write!(self.writer, "{}", h).map_err(Error::from));
         } else if let Some(tmpl) = parser.meta.template {
             try!(self.write_templated_help(&parser, tmpl));
         } else {