Merge remote-tracking branch 'origin/master' into miri

2 files changed, 2 insertions, 8 deletions

diff --git a/src/libstd/sys_common/net.rs b/src/libstd/sys_common/net.rs
index c76b0bcf1c9..c70b39995eb 100644
--- a/src/libstd/sys_common/net.rs
+++ b/src/libstd/sys_common/net.rs
@@ -136,10 +136,7 @@ impl Iterator for LookupHost {
     fn next(&mut self) -> Option<SocketAddr> {
         loop {
             unsafe {
-                let cur = match self.cur.as_ref() {
-                    None => return None,
-                    Some(c) => c,
-                };
+                let cur = self.cur.as_ref()?;
                 self.cur = cur.ai_next;
                 match sockaddr_to_addr(mem::transmute(cur.ai_addr),
                                        cur.ai_addrlen as usize)
diff --git a/src/libstd/sys_common/wtf8.rs b/src/libstd/sys_common/wtf8.rs
index e212b5006f2..b2fc559bb37 100644
--- a/src/libstd/sys_common/wtf8.rs
+++ b/src/libstd/sys_common/wtf8.rs
@@ -578,10 +578,7 @@ impl Wtf8 {
     fn next_surrogate(&self, mut pos: usize) -> Option<(usize, u16)> {
         let mut iter = self.bytes[pos..].iter();
         loop {
-            let b = match iter.next() {
-                None => return None,
-                Some(&b) => b,
-            };
+            let b = *iter.next()?;
             if b < 0x80 {
                 pos += 1;
             } else if b < 0xE0 {