[blam] An easier way to check for duplicate channel entries

[Carlos MartÃn Nieto <cmartin src gnome org>]

commit ce0f357fce5f48f175e56297649cc201769261c8
Author: Carlos MartÃn Nieto <carlos cmartin tk>
Date:   Sat Aug 4 21:05:00 2012 +0200

    An easier way to check for duplicate channel entries

 src/ChannelCollection.cs |    9 +++------
 1 files changed, 3 insertions(+), 6 deletions(-)
---
diff --git a/src/ChannelCollection.cs b/src/ChannelCollection.cs
index 7f7a427..9a23c02 100644
--- a/src/ChannelCollection.cs
+++ b/src/ChannelCollection.cs
@@ -173,12 +173,9 @@ namespace Imendio.Blam {
 
         public void Add (IChannel channel)
         {
-	    // Not the most efficient way of doing things :)
-	    foreach (Channel ch in mChannels) {
-		if (channel.Url == ch.Url) {
-		    return;
-		}
-	    }
+            // If we already have this feed, simply return
+            if (mChannels.Cast<Channel>().Any(channel.Url.Equals))
+                return;
 
         if(channel.Name == null){
             channel.Name = channel.Url;