Do some manual formatting in macros.

src/macros.rs

@@ -29,7 +29,7 @@ macro_rules! get_attr {
                     "Required attribute '",
                     $attr,
                     "' missing."
-                )))
+                )));
             }
         }
     };
@@ -169,9 +169,12 @@ macro_rules! generate_element_enum {
         }
         impl From<$elem> for ::minidom::Element {
             fn from(elem: $elem) -> ::minidom::Element {
-                ::minidom::Element::builder(match elem {
+                ::minidom::Element::builder(
+                    match elem {
                         $($elem::$enum => $enum_name,)+
-                }).ns(crate::ns::$ns)
+                    }
+                )
+                    .ns(crate::ns::$ns)
                     .build()
             }
         }

src/muc/user.rs

@@ -102,7 +102,7 @@ impl TryFrom<Element> for Actor {
             (Some(_), Some(_)) | (None, None) => {
                 return Err(Error::ParseError(
                     "Either 'jid' or 'nick' attribute is required.",
-                ))
+                ));
             }
             (Some(jid), _) => Ok(Actor::Jid(jid)),
             (_, Some(nick)) => Ok(Actor::Nick(nick)),

src/presence.rs

@@ -136,7 +136,7 @@ impl FromStr for Type {
             _ => {
                 return Err(Error::ParseError(
                     "Invalid 'type' attribute on presence element.",
-                ))
+                ));
             }
         })
     }

src/pubsub/event.rs

@@ -138,7 +138,7 @@ fn parse_items(elem: Element, node: NodeName) -> Result<PubSubEvent, Error> {
                 Some(true) => {
                     return Err(Error::ParseError(
                         "Mix of item and retract in items element.",
-                    ))
+                    ));
                 }
             }
             items.push(Item::try_from(child.clone())?);
@@ -149,7 +149,7 @@ fn parse_items(elem: Element, node: NodeName) -> Result<PubSubEvent, Error> {
                 Some(false) => {
                     return Err(Error::ParseError(
                         "Mix of item and retract in items element.",
-                    ))
+                    ));
                 }
             }
             check_no_children!(child, "retract");