Call make always with CFLAGS in git.spec

If not, the binaries get built once with the correct CFLAGS, and then again
with the ones in the Makefile when installing
Signed-off-by: NHorst H. von Brand <vonbrand@inf.utfsm.cl>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

git.spec.in

@@ -89,7 +89,8 @@ make %{_smp_mflags} CFLAGS="$RPM_OPT_FLAGS" WITH_OWN_SUBPROCESS_PY=YesPlease \
 
 %install
 rm -rf $RPM_BUILD_ROOT
-make %{_smp_mflags} DESTDIR=$RPM_BUILD_ROOT WITH_OWN_SUBPROCESS_PY=YesPlease \
+make %{_smp_mflags} CFLAGS="$RPM_OPT_FLAGS" DESTDIR=$RPM_BUILD_ROOT \
+     WITH_OWN_SUBPROCESS_PY=YesPlease \
      prefix=%{_prefix} mandir=%{_mandir} INSTALLDIRS=vendor \
      install %{!?_without_docs: install-doc}
 find $RPM_BUILD_ROOT -type f -name .packlist -exec rm -f {} ';'