Fix http link in SBCL

bucket/sbcl.json

@@ -1,5 +1,5 @@
 {
-	"homepage": "http://http://www.sbcl.org/",
+	"homepage": "http://www.sbcl.org/",
 	"version": "1.2.1",
 	"license": "http://www.sbcl.org/history.html",
 	"architecture": {
@@ -18,4 +18,4 @@
 	"bin": [ "PFiles\\Steel Bank Common Lisp\\1.2.1\\sbcl.exe"],
 	"checkver": "The most recent version is SBCL ([^\\ ]+)",
 	"notes": "Please restart you command line for SBCL_HOME to take effect. Please consider installing http://www.quicklisp.org/"
-}
+}