dovecot 2.1.3

Upgrades dovecot to the latest stable version. Upgrading from 2.0 is
"mostly compatible" with the following points of note:
    http://wiki2.dovecot.org/Upgrading/2.1

Closes #10990.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>

Library/Formula/dovecot.rb

@@ -1,11 +1,9 @@
 require 'formula'
 
 class Dovecot < Formula
-  url 'http://www.dovecot.org/releases/2.0/dovecot-2.0.15.tar.gz'
-  md5 '16a08dfd24422d482440a8b03d6f7f6c'
   homepage 'http://dovecot.org/'
-
-  def patches; DATA; end
+  url 'http://www.dovecot.org/releases/2.1/dovecot-2.1.3.tar.gz'
+  md5 'a0e25243862c61de6274cf7d682a76ec'
 
   def install
     system "./configure", "--disable-dependency-tracking",
@@ -51,37 +49,3 @@ def caveats; <<-EOS
   end
 end
 
-__END__
-
-# This patch fixes a linking problem looking for _environ, call
-# _NSGetEnviron() instead (upstream does that at another location but
-# misses this one).
-
-diff --git a/src/lib/env-util.c b/src/lib/env-util.c
-index 8111db7..c3520d0 100644
---- a/src/lib/env-util.c
-+++ b/src/lib/env-util.c
-@@ -7,6 +7,7 @@
- #include <stdlib.h>
- #ifdef __APPLE__
- #  include <crt_externs.h>
-+#  define environ (*_NSGetEnviron())
- #endif
-
- struct env_backup {
-@@ -36,7 +37,6 @@ void env_remove(const char *name)
-	unsetenv(name);
- #endif
- #else
--	extern char **environ;
-	unsigned int len;
-	char **envp;
-
-@@ -109,7 +109,6 @@ void env_clean_except(const char *const preserve_envs[])
-
- struct env_backup *env_backup_save(void)
- {
--	char **environ = *env_get_environ_p();
-	struct env_backup *env;
-	unsigned int i, count;
-	pool_t pool;