- fix to fix, actually remove INSTALL file

- add comments about removing installed files

OBS-URL: https://build.opensuse.org/package/show/devel:tools/gengetopt?expand=0&rev=4

gengetopt.spec

@@ -49,8 +49,12 @@ make
 
 %install
 %{?make_install} %{!?make_install:make install DESTDIR=$RPM_BUILD_ROOT}
+
+# our system's getopt.h has getopt_long() on board, no need to install sources
 rm -rf %{buildroot}%{_datadir}/%{name}
-rm -rf %{buildroot}%{_datadir}/%{name}/INSTALL
+# make rpmlint happy and delete INSTALL
+rm -f %{buildroot}%{_docdir}/%{name}/INSTALL
+
 
 %check
 make check