diff --git a/bitbake/lib/bb/build.py b/bitbake/lib/bb/build.py
index aabc1b6..30e5497 100644
--- a/bitbake/lib/bb/build.py
+++ b/bitbake/lib/bb/build.py
@@ -53,7 +53,7 @@ class FuncFailed(Exception):
         self.logfile = logfile
         self.name = name
         if name:
-            self.msg = "Function '%s' failed" % name
+            self.msg = 'Function failed: %s' % name
         else:
             self.msg = "Function failed"
 
diff --git a/bitbake/lib/bb/fetch2/__init__.py b/bitbake/lib/bb/fetch2/__init__.py
index 3af56e5..b76358d 100644
--- a/bitbake/lib/bb/fetch2/__init__.py
+++ b/bitbake/lib/bb/fetch2/__init__.py
@@ -55,7 +55,10 @@ class MalformedUrl(BBFetchException):
 class FetchError(BBFetchException):
     """General fetcher exception when something happens incorrectly"""
     def __init__(self, message, url = None):
-         msg = "Fetcher failure for URL: '%s'. %s" % (url, message)
+         if url:
+            msg = "Fetcher failure for URL: '%s'. %s" % (url, message)
+         else:
+            msg = "Fetcher failure: %s" % message
          self.url = url
          BBFetchException.__init__(self, msg)
          self.args = (message, url)
@@ -983,7 +986,7 @@ class Fetch(object):
                         localpath = try_mirrors (self.d, ud, mirrors)
 
                 if not localpath or ((not os.path.exists(localpath)) and localpath.find("*") == -1):
-                    raise FetchError("Unable to fetch URL %s from any source." % u, u)
+                    raise FetchError("Unable to fetch URL from any source.", u)
 
                 update_stamp(u, ud, self.d)