gettext: Fix ptest failure

msgmerge-29 is a script without execute permissions but executed as
./msgmerge-29 which results in this test failing.

It is only one test which fails on gettext/qemux86-64

(From OE-Core rev: 96f001218d7b2b550160bee568ab451d59e3a577)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-core/gettext/gettext-0.21/0001-msgmerge-29-Add-executable-file-mode-bits.patch

@@ -0,0 +1,23 @@
+From 71988f83b69c4ed98d1b9418da80edf11a931894 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Wed, 23 Sep 2020 22:08:34 -0700
+Subject: [PATCH] msgmerge-29: Add executable file mode bits
+
+This script is installed with default mode bits and executed directly
+e.g ./msgmerge-29 when doing make check which results in
+
+/bin/bash: line 9: ./msgmerge-29: Permission denied
+
+Upstream-Status: Pending
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ gettext-tools/tests/msgmerge-29 | 0
+ 1 file changed, 0 insertions(+), 0 deletions(-)
+ mode change 100644 => 100755 gettext-tools/tests/msgmerge-29
+
+diff --git a/gettext-tools/tests/msgmerge-29 b/gettext-tools/tests/msgmerge-29
+old mode 100644
+new mode 100755
+-- 
+2.28.0
+

meta/recipes-core/gettext/gettext_0.21.bb

@@ -21,6 +21,7 @@ SRC_URI = "${GNU_MIRROR}/gettext/gettext-${PV}.tar.gz \
            file://0001-tests-autopoint-3-unset-MAKEFLAGS.patch \
            file://0001-init-env.in-do-not-add-C-CXX-parameters.patch \
            file://mingw.patch \
+           file://0001-msgmerge-29-Add-executable-file-mode-bits.patch \
            "
 SRC_URI[sha256sum] = "c77d0da3102aec9c07f43671e60611ebff89a996ef159497ce8e59d075786b12"