diff --git a/patch-args.patch b/patch-args.patch
new file mode 100644
index 0000000..f0e5f47
--- /dev/null
+++ b/patch-args.patch
@@ -0,0 +1,20 @@
+diff -up patch-2.7.1/src/patch.c.args patch-2.7.1/src/patch.c
+--- patch-2.7.1/src/patch.c.args	2013-04-11 11:30:52.644026499 +0100
++++ patch-2.7.1/src/patch.c	2013-04-11 11:31:54.990246532 +0100
+@@ -762,7 +762,7 @@ static char const *const option_help[] =
+ "",
+ "  -D NAME  --ifdef=NAME  Make merged if-then-else output using NAME.",
+ #ifdef ENABLE_MERGE
+-"  -m  --merge  Merge using conflict markers instead of creating reject files.",
++"  --merge  Merge using conflict markers instead of creating reject files.",
+ #endif
+ "  -E  --remove-empty-files  Remove output files that are empty after patching.",
+ "",
+@@ -801,6 +801,7 @@ static char const *const option_help[] =
+ "  --binary  Read and write data in binary mode.",
+ "  --read-only=BEHAVIOR  How to handle read-only input files: 'ignore' that they",
+ "                        are read-only, 'warn' (default), or 'fail'.",
++"  -x NUM  --debug=NUM  Set internal debugging flags.",
+ "",
+ "  -v  --version  Output version info.",
+ "  --help  Output this help.",
diff --git a/patch.spec b/patch.spec
index 0469a49..698e982 100644
--- a/patch.spec
+++ b/patch.spec
@@ -1,12 +1,13 @@
 Summary: Utility for modifying/upgrading files
 Name: patch
 Version: 2.7.1
-Release: 4%{?dist}
+Release: 5%{?dist}
 License: GPLv3+
 URL: http://www.gnu.org/software/patch/patch.html
 Group: Development/Tools
 Source: ftp://ftp.gnu.org/gnu/patch/patch-%{version}.tar.xz
 Patch1: patch-remove-empty-dir.patch
+Patch2: patch-args.patch
 Patch100: patch-selinux.patch
 Buildroot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 
@@ -30,6 +31,9 @@ applications.
 # Upstream patch to fix removal of empty directories (bug #919489).
 %patch1 -p1 -b .remove-empty-dir
 
+# Don't document unsupported -m option; document -x option (bug #948972).
+%patch2 -p1 -b .args
+
 # SELinux support.
 %patch100 -p1 -b .selinux
 
@@ -58,6 +62,9 @@ rm -rf $RPM_BUILD_ROOT
 %{_mandir}/*/*
 
 %changelog
+* Thu Apr 11 2013 Tim Waugh <twaugh@redhat.com> 2.7.1-5
+- Don't document unsupported -m option; document -x option (bug #948972).
+
 * Mon Mar 25 2013 Ville Skyttä <ville.skytta@iki.fi> - 2.7.1-4
 - Build with xattr support.
 - Make build output more verbose.