Install valgrind and langpacks to increase test coverage

sed.spec

@@ -16,6 +16,12 @@ BuildRequires: glibc-devel, libselinux-devel, libacl-devel, automake, autoconf,
 BuildRequires: perl-Getopt-Long
 BuildRequires: perl(FileHandle)
 
+# for tests.  More tests require a ja_JP locale, but glibc-langpack-ja gives:
+#   invalid-mb-seq-UMR.sh: skipped test: locale 'ja_JP' is buggy
+#   mb-charclass-non-utf8.sh: skipped test: ja_JP shift-jis locale not found
+BuildRequires: glibc-langpack-el, glibc-langpack-en
+BuildRequires: glibc-langpack-ru, valgrind
+
 Provides: /bin/sed
 
 #copylib
@@ -31,9 +37,6 @@ specified in a script file or from the command line.
 %prep
 %autosetup -p1
 
-sed -e 's/1729576/EPERM/' \
-    -i gnulib-tests/test-{strerror_r,perror2}.c
-
 %build
 %configure --without-included-regex
 %make_build
@@ -65,6 +68,8 @@ rm -f ${RPM_BUILD_ROOT}/%{_infodir}/dir
 - Rebase to 4.9
 - Update downstream patches
 - Resolves: rhbz#2140486
+- Remove change to gnulib tests, they pass anyway
+- Install valgrind and langpacks to increase test coverage
 
 * Sat Jan 27 2024 Fedora Release Engineering <releng@fedoraproject.org> - 4.8-15
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild