[libhttpseverywhere] updater: fixed an error string

[Daniel Brendle <elbren src gnome org>]

commit eddf37039efc61d1456cb71259d19ad4e7d57ffb
Author: grindhold <grindhold gmx net>
Date:   Mon Oct 31 20:29:06 2016 +0100

    updater: fixed an error string
    
    there was a missing negation which rendered the error message
    a bit confusing

 src/update.vala |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/update.vala b/src/update.vala
index 6f6a441..1dfb4f7 100644
--- a/src/update.vala
+++ b/src/update.vala
@@ -131,7 +131,7 @@ namespace HTTPSEverywhere {
                         throw (IOError) e;
                     if (e is UpdateError.NO_UPDATE_AVAILABLE)
                         throw (UpdateError) e;
-                    throw new UpdateError.CANT_REACH_SERVER("Could request update from '%s'", UPDATE_URL);
+                    throw new UpdateError.CANT_REACH_SERVER("Couldn't request update from '%s'", UPDATE_URL);
                 }
             } catch (FileError e) {}