Fix some overly long comments. NFC.

src/socket/raw.rs

@@ -198,7 +198,8 @@ impl<'a, 'b> RawSocket<'a, 'b> {
                     if checksum_caps.ipv4.tx() {
                         packet.fill_checksum();
                     } else {
-                        // make sure we get a consistently zeroed checksum, since implementations might rely on it
+                        // make sure we get a consistently zeroed checksum,
+                        // since implementations might rely on it
                         packet.set_checksum(0);
                     }
 

src/wire/icmpv4.rs

@@ -482,7 +482,8 @@ impl<'a> Repr<'a> {
         if checksum_caps.icmpv4.tx() {
             packet.fill_checksum()
         } else {
-            // make sure we get a consistently zeroed checksum, since implementations might rely on it
+            // make sure we get a consistently zeroed checksum,
+            // since implementations might rely on it
             packet.set_checksum(0);
         }
     }

src/wire/ipv4.rs

@@ -524,7 +524,8 @@ impl Repr {
         if checksum_caps.ipv4.tx() {
             packet.fill_checksum();
         } else {
-            // make sure we get a consistently zeroed checksum, since implementations might rely on it
+            // make sure we get a consistently zeroed checksum,
+            // since implementations might rely on it
             packet.set_checksum(0);
         }
     }

src/wire/tcp.rs

@@ -751,7 +751,8 @@ impl<'a> Repr<'a> {
         if checksum_caps.tcpv4.tx() {
             packet.fill_checksum(src_addr, dst_addr)
         } else {
-            // make sure we get a consistently zeroed checksum, since implementations might rely on it
+            // make sure we get a consistently zeroed checksum,
+            // since implementations might rely on it
             packet.set_checksum(0);
         }
     }

src/wire/udp.rs

@@ -248,7 +248,8 @@ impl<'a> Repr<'a> {
         if checksum_caps.udpv4.tx() {
             packet.fill_checksum(src_addr, dst_addr)
         } else {
-            // make sure we get a consistently zeroed checksum, since implementations might rely on it
+            // make sure we get a consistently zeroed checksum,
+            // since implementations might rely on it
             packet.set_checksum(0);
         }
     }