Fix java setter method param case, remove return.

The paramater was keeping the case of the setter name.  It should
have been lowercased.  The other uses of the paramter were already
lowercased correctly.

There should also not be a return statement in a void method.

Author: ryanpineo

Diff for: UltiSnips/java.snippets

@@ -343,8 +343,8 @@ public ${1:String} get${2:Name}() {
 endsnippet
 
 snippet /set(ter)?/ "setter" br
-public void set${1:Name}(${2:String} $1) {
-	return this.`!p snip.rv = t[1].lower()` = `!p snip.rv = t[1].lower()`;
+public void set${1:Name}(${2:String} `!p snip.rv = t[1].lower()`) {
+	this.`!p snip.rv = t[1].lower()` = `!p snip.rv = t[1].lower()`;
 }
 endsnippet