gnu: screen: Update to 4.5.1.

* gnu/packages/screen.scm (screen): Update to 4.5.1.
[source]: Remove patch.
* gnu/packages/patches/screen-CVE-2017-5618.patch: Remove file.
* gnu/local.mk (dist_patch_DATA): Remove it.

gnu/local.mk

@@ -893,7 +893,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/sed-hurd-path-max.patch			\
   %D%/packages/patches/scheme48-tests.patch			\
   %D%/packages/patches/scotch-test-threading.patch		\
-  %D%/packages/patches/screen-CVE-2017-5618.patch		\
   %D%/packages/patches/sdl-libx11-1.6.patch			\
   %D%/packages/patches/seq24-rename-mutex.patch			\
   %D%/packages/patches/serf-comment-style-fix.patch		\

gnu/packages/patches/screen-CVE-2017-5618.patch

@@ -1,40 +0,0 @@
-Fixes CVE-2017-5618 (privilege escalation via opening the logfile when
-screen is installed setuid root):
-
-https://savannah.gnu.org/bugs/?50142
-https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5618
-
-This patch reverts the upstream commit that introduced the bug:
-
-https://git.savannah.gnu.org/cgit/screen.git/commit/?id=5460f5d28c01a9a58e021eb1dffef2965e629d58
-
-From f55b0cc29a0ac2a1c54e8a5e886b7393edd4a76c Mon Sep 17 00:00:00 2001
-From: Leo Famulari <leo@famulari.name>
-Date: Sat, 11 Feb 2017 22:40:24 -0500
-Subject: [PATCH] Revert "adding permissions check for the logfile name"
-
-This reverts commit 5460f5d28c01a9a58e021eb1dffef2965e629d58.
----
- src/screen.c | 6 ------
- 1 file changed, 6 deletions(-)
-
-diff --git a/src/screen.c b/src/screen.c
-index 64650e9..283c305 100644
---- a/src/screen.c
-+++ b/src/screen.c
-@@ -673,12 +673,6 @@ int main(int ac, char** av)
-                 Panic(0, "-L: logfile name can not start with \"-\" symbol");
-               if (strlen(screenlogfile) > PATH_MAX)
-                 Panic(0, "-L: logfile name too long. (max. %d char)", PATH_MAX);
--
--              FILE *w_check;
--              if ((w_check = fopen(screenlogfile, "w")) == NULL)
--                Panic(0, "-L: logfile name access problem");
--              else
--                fclose(w_check);
-             }
-             nwin_options.Lflag = 1;
-             break;
--- 
-2.11.1
-

gnu/packages/screen.scm

@@ -35,15 +35,13 @@
 (define-public screen
   (package
     (name "screen")
-    (version "4.5.0")
+    (version "4.5.1")
     (source (origin
              (method url-fetch)
              (uri (string-append "mirror://gnu/screen/screen-"
                                  version ".tar.gz"))
-             (patches (search-patches "screen-CVE-2017-5618.patch"))
-             (patch-flags '("-p2"))
              (sha256
-              (base32 "1c7grw03a9iwvqbxfd6hmjb681rp8gb55zsxm7b3apqqcb1sghq1"))))
+              (base32 "0bbv16gpxrh64sn4bvjy3qjy7jsxjlqlilyysin02fwnvla23nwp"))))
     (build-system gnu-build-system)
     (native-inputs
      `(("makeinfo" ,texinfo)))