Fix for defParamsToString.

commas in the generated scaladoc.  Example:

< <a id=":+[B&gt;:B, That](B)(C,a,n,B,u,i,l,d,F,r,o,m,[,L,i,s,t,[,B,],,,
,B,,, ,T,h,a,t,]):That"></a>

---
>       <a id=":+[B&gt;:B, That](B)(CanBuildFrom[List[B], B, That]):That"></a>

The whole element may be spurious given that this could go unnoticed,
but today was only "Stamp Out Commas" day. No review.

1 files changed, 5 insertions, 3 deletions

diff --git a/src/compiler/scala/tools/nsc/doc/html/page/Template.scala b/src/compiler/scala/tools/nsc/doc/html/page/Template.scala
index b333817dc6..481cfac6f6 100644
--- a/src/compiler/scala/tools/nsc/doc/html/page/Template.scala
+++ b/src/compiler/scala/tools/nsc/doc/html/page/Template.scala
@@ -158,9 +158,11 @@ class Template(tpl: DocTemplateEntity) extends HtmlPage {
   }
 
   def defParamsToString(d: MemberEntity with Def): String = {
-    val namess =
-      for( ps <- d.valueParams; p <- ps ) yield p.resultType.name
-    tparamsToString(d.typeParams) + namess.foldLeft("") { (s,names) => s + (names mkString("(",",",")")) }
+    val paramLists: List[String] =
+      if (d.valueParams.isEmpty) Nil
+      else d.valueParams map (ps => ps map (_.resultType.name) mkString ("(",",",")"))
+
+    tparamsToString(d.typeParams) + paramLists.mkString
   }
 
   def memberToHtml(mbr: MemberEntity): NodeSeq = {